Olivia works at a company that creates mobile phones. She wanted to estimate the mean amount of time their new phone's battery lasts with regular use after a full charge. She took a random sample of
6
66 of these phones and randomly assigned each of them to a volunteer. She instructed them to fully charge the phones and use them as they regularly would until the battery died (without recharging the phone). Here are the data they reported:
Phone
1
11
2
22
3
33
4
44
5
55
6
66
Battery life (hours)
8.0
8.08, point, 0
6.0
6.06, point, 0
10.5
10.510, point, 5
9.0
9.09, point, 0
8.5
8.58, point, 5
12
1212
Mean
x
ˉ
=
9
x
ˉ
=9x, with, \bar, on top, equals, 9 hours
Standard deviation
s
x
=
2.07
s
x

=2.07s, start subscript, x, end subscript, equals, 2, point, 07 hours
Assume that all conditions for inference are met.
Which of the following is a
90
%
90%90, percent confidence interval for the mean battery life (in hours)?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
9
±
1.4
9±1.49, plus minus, 1, point, 4

(Choice B)
B
9
±
1.7
9±1.79, plus minus, 1, point, 7

(Choice C)
C
9
±
2.0
9±2.09, plus minus, 2, point, 0

(Choice D)
D
9
±
2.07
9±2.079, plus minus, 2, point, 07

Answers

Answer 1

An swer:  

                               

 E. xpl an ation:    

                               


Related Questions

Need answer ASAP!!!!

Answers

Hi,

I tried answering this. Lol. Look at the image.

Pascal system . write the program that will calculate the perimeter of a rectangle if its area is A (m²) and one of its sides has a length of B (m). A and B are entered from the keyboard.​

Answers

Answer:

The program in Pascal is as follows:

Program Perimeter;

Uses Crt;

Var

 Length : Real;

 Width : Real;

 Area    : Real;

 Perim : Real;

Begin

 Clrscr;

 Write('Area: ');

 Readln(Area);

 Write('Length : ');

 Readln(Length);

 Width := Area/Length;

 Perim := 2 * (Length + Width);

 Write('Perimeter: ' ,Perim:5:2,'.');

End.

Explanation:

This declares all variables as real

Var

 Length : Real;

 Width : Real;

 Area    : Real;

 Perim : Real;

The program execution begins here

Begin

This clears the screen

 Clrscr;

This prompts the user for Area

 Write('Area: ');

This gets input for Area

 Readln(Area);

This prompts the user for Length

 Write('Length : ');

This gets input for Length

 Readln(Length);

This calculates the width

 Width := Area/Length;

This calculates the perimeter

 Perim := 2 * (Length + Width);

This prints the calculated perimeter

 Write('Perimeter: ' ,Perim:5:2,'.');

This ends the program

End.

In a school 50% of the students are younger than 10, 1/20 are 10 years old and 1/10 are older than 10 but younger than 12, the remaining 70 students are 12 or older. How many students are 10?

Answers

Answer: 10 students

Explanation:

Students younger than 10 = 50%

Students that are 10years old = 1/20 = 1/20 × 100 = 5%

Students that are older than 10 but younger than 12 = 1/10= 1/10 × 100 = 10%

Students that are 12 years or older

= 100% - (50% + 5% + 10%)

= 100% - 65%

= 35%

This means that 35% of the students are 12 years or older and we've been given the number as 70.

Let's say the total number of students is x. Therefore,

35% of x = 70

0.35 × x = 70

0.35x = 70

x = 70/0.35

x = 200

The total number of students is 200.

Therefore, the number of students that are 10years will be:

= 1/20 × 200

= 10 students

Therefore, 10 students are 10 years.

fill in the blanks with correct pronounce
i like watches.The nice watch is for ________​

Answers

Answer:

I like watches. This nice watch is for me.

(25 POINTS) Some applications work on all devices while others work on some devices. True or False?

Answers

Answer:

True.

Explanation:

It is true that some applications work on some devices but not on others. This is so because it depends on the operating system of each device, that is, if the device has an operating system compatible with the application in question, said application will work, but if, on the contrary, the operating system is not compatible, the application will not be useful in this.

which processor is compatible with an AM2+ socket

Answers

Answer:

Amd phenom x4 9950 black edition

Explanation:

Where do animators work?
How do companies use web sites?
What is an operating system?
What is a database?
What is an app?

Answers

1. Most animators work in big cities where movie and television studios, animation studios, software developers, and video game design firms are located.
2. I’m confused about this one.
3. An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. ... The dominant general-purpose desktop operating system is Microsoft Windows with a market share of around 76.45%.
4. A database is an organized collection of data, generally stored and accessed electronically from a computer system.
5. An app, which is short for "application," is a type of software that can be installed and run on a computer, tablet, smartphone or other electronic devices. An app most frequently refers to a mobile application or a piece of software that is installed and used on a computer.

Treston, an automobile manufacturer, has recently implemented a new database system. It is confident that this system will help enhance the company's internal (employees) and external (customers and channel partners) communication. Treston is planning to pursue a just-in-time inventory system soon after the database system is implemented. After the implementation of the database system, however, Treston realized that the database system was not effective. Which of the following, if true, can be cited as a reason for the failure of Treston's database system?
A. Microsoft launched a new version of Enterprise Microsoft Access which is better than Treston's database system.
B. The maintenance cost of Treston's new database system was less than the one it was previously using.
C. Treston's new database system was not supported by the database system of its suppliers and distributors.
D. Treston's competitors implemented its database a few days prior to Treston's implementation date.
E. Treston had internally trained personnel managing its new database system, keeping costs low.

By combining human intelligence and reasoning capabilities with technology's retrieval and analysis capabilities, visual analytics can help in decision making.
A. True
B. False

In a distributed online environment, performing real-time analytical processing enhances the performance of transaction processing.
A. True
B. False

________ are produced at predefined intervals to support routine decisions.
A. Ad hoc queries
B. Exception reports
C. Drill-down reports
D. Scheduled reports
E. Key-indicator reports

________ help analyze why a key indicator is not at an appropriate level or why an exception occurred.
A. Ad hoc queries
B. Exception reports
C. Drill-down reports
D. Scheduled reports
E. Key-indicator reports

Answers

Answer:

C. The New database system of Treston was not supported by the database system of its suppliers and distributors.

TRUE

False

Scheduled reports

Drill down reports

Explanation:

The just-in-time is popularly known as the JIT. The JIT inventory system is defined as a management strategy in which the company gets goods and products as close as when they are actually needed. Some goods are received 'just in time' at the processing or at the manufacturing time of the final product.

In the context, the data base system failed for Treston company as the new data base system did not support the database system for the suppliers as well as the distributors of the car manufacturing company, Treston.

It is true that by combining the intelligence of human and the reasoning capabilities with that of retrieval and the analysis of the technology, the visual analytics can help in the process of decision making.

In the distributed environment done online, performing the real-time analytical processes does not enhances the performance of the transaction processing. So the answer is false.

A scheduled report is a report that is sent out or delivered at a specified time by an email provider. They are produced to support the routine decisions at predefined intervals.

A Drill down reports helps to see the data for a more detailed and a comprehensive view. It helps to analyze that a key indicator is not the appropriate level.

             

You are designing an ecommerce web application that will scale to hundreds of thousands of concurrent users. Which database technology is best suited to hold the session state in this example

Answers

Answer: Amazon DynamoDB

Explanation:

The database technology that is best suited to hold the session state in this example is the Amazon DynamoDB.

Amazon DynamoDB is a document database which helps in delivering high quality and fast cperformance at any scale. It can be used to scale to hundreds of thousands of concurrent users as it's multi-active, and has a durable database that has built-in security.

I need the answer ASAP!!!! I’ll mark brainliest if correct

Select the correct answer.
What model defines data structures and expands software architecture and components?
O A.
architectural design model
OB.
data design model
O C.
interface design model
OD.
component-level design model

Answers

Answer:

Option D

Explanation:

option d component level design model is the correct answer

If you are worried that team members will not keep sensitive information private, you could ask them to sign a ________ agreement.
A. Non-confidentiality
B. Security
C. Non-disclosure

Answers

Answer:

C

Explanation:

It has legal reproduction if you break it, many nannys that work for a famous person/people have to sign a non-disclosure before they're hired.

product of -6/13 and reciprocal of -7/16 is ____________​

Answers

Answer:

-250/91

Explanation:

Use a calculator

Which occurs when private details of a class are hidden from other classes or parts of the program that uses instances of the class?
inheritance

polymorphism

encapsulation

operation overloading

Answers

Answer:

Encapsulation

Explanation: got it right

Answer:

Encapsulation

Explanation:

I took the quiz.

What is the difference between manual and computer typesetting?

Answers

Answer:

Manual typesetting: The form was placed in a press, inked, and an impression made on paper. During typesetting, individual sorts are picked from a type case with the right hand, and set into a composing stick held in the left hand from left to right, and as viewed by the setter upside down.

Computer typesetting: Computerized typesetting, method of typesetting in which characters are generated by computer and transferred to light-sensitive paper or film by means of either pulses from a laser beam or moving rays of light from a stroboscopic source or a cathode-ray tube (CRT).

A network utilizes a network access control (NAC) solution to protect against malware. When a wired or wireless host tries to connect to the network, a NAC agent on the host checks it to make sure it has all of the latest operating system updates installed and that the latest antivirus definitions have been applied. What is this process called

Answers

Answer: Posture assessment

Explanation:

Posture assessment, also refers to posture validation and it is when somw set of rules are applied to the posture data which then gives an assessment of the trust level which can be placed in th e endpoint.

Posture assessment has to do with how the system security is evaluated based on the applications and the settings.

How do we calculate the BMI in python?
the formula is kg/m²

Answers

Answer:

height = float(input("Enter your height in m: "))

weight = float(input("Enter your weight in kg: "))

BMI = weight / (height/100)**2

print(f"You BMI is {BMI}")

Explanation:

The python code for calculating BMI is as follows -

height = float(input("Enter your height in m: "))

weight = float(input("Enter your weight in kg: "))

BMI = weight / (height/100)**2

print(f"You BMI is {BMI}")

Some conditions can also be added such as

if BMI <= 15:

   print("You are underweight.")

elif BMI <= 30:

   print("You are healthy.")

elif BMI <= 40:

   print("You are over weight.")

An application programming interface (API) is ________. (1 point) the code the application software uses to take advantage of code written by others the currently active part of an application the code to interface between an application and a peripheral like a printer the code to interface between an application and RAM

Answers

Answer:

an interface

Explanation:

(API) is an interface that defines interactions between multiple software applications or mixed hardware-software intermediaries.

what is a cell address in xsl sheet

Answers

Answer:

cell address is the exact location of a particular cell of ms-excle

Explanation:

A1 refers to first row and first column.

A2 refers to second row first column.

i.e.

in 'A1' : 'A' indicate column { A= first column, B= second

column, C= third column. and soon.....}

'1' indicate row { 1 = first row, 2 = second row, 3= third row..... soon .......}

(25 POINTS)Which statement best reflects the importance of following safety guidelines?

Workplace injuries can result in losses to an organization’s profits.

OSHA responds to complaints of unsafe work environments, and can fine or take negligent employers to court.

Every year, thousands of people die as a result of workplace injuries.

Using equipment safely is faster and makes work more efficient.

Answers

Answer:

I think, Every year, thousands of people die as a result of workplace injuries.

Answer:

B

Explanation:

Write short notes on slide show view. (In easy way)​

Answers

Answer:

Slide Show View takes up the full computer screen, like an actual slide show presentation. In this full-screen view, the presentation is shown the way it will be seen by the audience. Graphics, timings, movies, animated elements, and transition effects are shown how they will look in the actual show.

Chlorine has two naturally occurring isotopes that are 35cland 37cl, the accurate masses and abundance are 34.96 and 75.6%and 36.97 and 24.4% respectively calculate the relative atomic mass of cl.

Answers

[tex] \implies \huge \tt \underline \red{answer}[/tex]

Hlo

Hey guys.....Help pls 1 small question! I need it ASAP!!!!!!!!​

Answers

Answer:

I'm pretty Sure that is a yes.

Explanation:

It would make sense because even though it is a hyperlink the location is still different than the Original.

Hope this Helps!

Select all the correct answers.

John travels all over the country visiting various clients. He needs to access his documents and services on the go. Which of these technologies
allows him to access documents and software while on the move?

A:cloud computing
B: grid computing
C:mobile computing
D:green computing
E:virtualization

Answers

Answer:

acd

Explanation:

i cant explain

Answer:

A

C

D

Explanation:

Plato

Look at the following partial class definition, and then respond to the questions that follow it:


public class Book


{


private String title;


private String author;


private String publisher;


private int copiesSold;


}


a. Write a constructor for this class. The constructor should accept an argument for each of the fields.


b. Write accessor and mutator methods for each field.


c. Draw a UML diagram for the class, including the methods you have written.

Answers

Solution :

a.

public Book([tex]$\text{String title}$[/tex], String author, [tex]$\text{String publisher}$[/tex], int [tex]$\text{copiesSold}$[/tex]) {

 this.[tex]$\text{title}$[/tex] = [tex]$\text{title}$[/tex];

 this.[tex]$\text{author}$[/tex] = [tex]$\text{author}$[/tex];

 this.[tex]$\text{publisher}$[/tex] = [tex]$\text{publisher}$[/tex];

 this.[tex]$\text{copiesSold}$[/tex] = [tex]$\text{copiesSold}$[/tex];

b). [tex]$\text{public String}$[/tex] getTitle() {

 return [tex]$\text{title}$[/tex];

}

[tex]$\text{public void}$[/tex] setTitle([tex]$\text{String title}$[/tex]) {

 this.[tex]$\text{title}$[/tex] = [tex]$\text{title}$[/tex];

}

[tex]$\text{public String}$[/tex] getAuthor() {

 return author;

}

[tex]$\text{public void}$[/tex] setAuthor(String author) {

 this.[tex]$\text{author}$[/tex] = [tex]$\text{author}$[/tex];

}

[tex]$\text{public String}$[/tex] getPublisher() {

 return [tex]$\text{publisher}$[/tex];

}

[tex]$\text{public void}$[/tex] setPublisher(String [tex]$\text{publisher}$[/tex]) {

 this.[tex]$\text{publisher}$[/tex] =[tex]$\text{publisher}$[/tex];

}

public int get[tex]$\text{copiesSold}$[/tex]() {

 return [tex]$\text{copiesSold}$[/tex];

}

[tex]$\text{public void}$[/tex] set[tex]$\text{copiesSold}$[/tex](int [tex]$\text{copiesSold}$[/tex]) {

 this.[tex]$\text{copiesSold}$[/tex] = [tex]$\text{copiesSold}$[/tex];

}


b. An advantage of a WAN is that everyone on the network can access the same
data and​

Answers

Ns provide dedicated traffic for your organization, and they are much more secure than the internet itself. Additionally, sending your information across the internet means that you have to share bandwidth with millions of other businesses rather than having your own dedicated bandwidth by using WAN

Ram cannot be written again and again true or false​

Answers

Answer:

The answer is: False

Drag the tiles to the correct boxes to complete the pairs.
George has a set of software programs installed on his computer to create a digital portfolio. He is not sure what each program does. Help
George by matching the software to their purposes.
Adobe InDesign
Microsoft Word
Adobe Photoshop
Quark QuarkXPress
creating and editing images
creating and editing page layouts
creating and editing text documents

Answers

Answer:

I just answered this today (5/11/2022) and these are the correct answers.

creating and editing images                  Adobe Photoshop

creating and editing page layouts        Quark QuarkXPress

creating and editing text docs               Microsoft Word

desktop publishing                                 Adobe InDesign

Explanation:

Francesca wants to create a program that will produce the phrase “Hello, world” on the screen. Which of these functions should Francesca use?

Answers

Answer:

It would be print.

Explanation:

If you want to execute a function it should be print so it will show up in the output box.

Pleaseeee hellppp!!!!!

Answers

Answer:

credit card info and delivery address

Explanation:

Help! ASAP! 1 Question.........°○°​

Answers

Answer: I think D)?

Explanation: Or B)

Other Questions
Maria goes for a hike inside a cave. What types of rocks will she most likely see?extrusive igneousmetamorphicchemical sedimentaryclastic sedimentary if f,g and h are midpoints of the sides of the triangle jkl, fg=40, kl=52 and gh=26, find each measure What linear equation is represented by the table? Please hurry! Best answer gets Brainliest!!!!A) Y= 2xB) y= 4xC) y= 4x -2D) y= 2x - 2 OMG I NEED HELP PLSSSSSSSSSSSWHATS 1 + 1?ILL MAKE U BRAINLIEST IF U ANSWER SO PLS HELP ME Which were advantages the North had over the South at the start of the Civil War?(Select all that apply.)The North had more wealth.The North had the support of foreign powers.The North had more skilled generals.The North had a more industrialized economy.The North had a more agrarian economy.The North had a larger population. I need answer Immediately pls!!!!!! I need backup no links on My question or I will report you what is internet? explain help pliz Question 9 of 10Which major figure in the civil rights movement wrote "Letter FromBirmingham Jail"?O A. Martin Luther King Jr.O B. Thurgood MarshallO C. Robert C. WeaverO D. James Baldwin 3. The following question has two parts. Answer Part A first, and then Part B.Part A Read the following sentence from paragraph 1.One day, (my grandfather) decided to get book-learning.By choosing the word book-learning, what does Rice most likely wish tosuggest about her grandfather?a. By choosing a term used by some teachers, she wishes to suggest thather grandfather is intelligent.b. By choosing a witty term, she wishes to suggest that her grandfather hada sense of humor.C. By choosing a term used by some country people, she wishes to suggesther grandfather's country upbringing.d. By choosing a term that shows disrespect, she wishes to suggest that hergrandfather had scorn for educated people. What is 2 + 2 = ?Write your answer as fraction. find the surface area. round to the nearest hundredth when necessary. HELPPPPExplain your answer for brainliest What protection did a Roman legionary have when going into battle? a body armor, a shield, and a weapon b machine gun, spear, helmet, and shield c tank, body armor, and gun d vest, gun helmet, and grenades Nosotros no podemos tener otra televisor en casa porque ____ mucho. Costar Find the values of x and y in the diagram. find the length of CD. commenta los dibujos e inventa un ttulo (humoristico, si es posible) que ilustre el enfoque de cada uno. HELP PLS Suppose you owe 1,000 on your credit card and that at the end of each month an additional 1.4708% of the amount you owe is added onto the amount you owe. You have stopped using this credit card and do not have any money to make any payments. The only change to the amount every month is the addition of the amount interest. How much will you owe after 6 months ? Enter the value for x that makes the equation x-7=-4