A consumer agency wants to determine which of two laundry detergents, A or B, cleans better. Fifty 1-square-foot sections of fabric are randomly selected and cut from different bolts of fabric. They are then subjected to the same kinds of stains (grass, mud, coffee). Then 25 pieces are randomly assigned to be cleaned with detergent A, and the remaining 25 pieces are cleaned with detergent B. After being laundered, the pieces of fabric are rated on a scale of 1–10, with 1 being the least clean to 10 being the most clean. The mean rating for detergent A is found to be significantly greater than the mean rating for detergent B.

Which of the following is a valid conclusion?

Inferences can be made about the population of fabric from which the pieces were cut. The conclusion can be made that detergent A cleans better than detergent B for the fabric from these bolts.

Inferences cannot be made about the population of fabric from which the pieces were cut. The conclusion can be made that detergent A cleans better than detergent B for the fabric from these bolts.

Inferences can be made about the population of fabric from which the pieces were cut. The conclusion cannot be made that detergent A cleans better than detergent B for the fabric from these bolts.

Inferences cannot be made about the population of fabric from which the pieces were chosen. The conclusion cannot be made that detergent A cleans better than detergent B for the fabric from these bolts.

Answers

Answer 1

The conclusion about the detergents in the sampling is D.Inferences cannot be made about the population of fabric from which the pieces were chosen.

What is sampling?

Sampling is the selection of a subset of individuals that are gotten from a statistical population in order to estimate the characteristics of the whole population.

In this case, inferences cannot be made about the population of fabric from which the pieces were chosen. The conclusion cannot be made that detergent A cleans better than detergent B for the fabric from these bolts.

Learn more about sampling on:

https://brainly.com/question/17831271


Related Questions

which of the following statements is true?

Answers

Answer:

D. In an axiomatic system, every statement, either its capable of being proven true or false.

Step-by-step explanation:

I'm sure.

Question on picture(how the question short bozo)

Answers

Answer: The correct answer is C.

Step-by-step explanation: C Shows multiple animals and shows plants. It also shows water which is needed in an ecosystem.

Hope this helps!


I’m thinking trapezoid and rhombus but I don’t know

Answers

It’s a parallelogram for sure

Help as soon as possible thanks

Answers

6x11=66ft
3x14=42ft

Add the answers together
42+66
= 108 squared feet

Is -9,8 a solution to y=-9

Answers

Answer:

No, it isn't.

Step-by-step explanation:

In (-9, 8), -9 is the x coordinate. The y is 8. In order for -9 to have been a solution, the y would have had to been -9.

Here's what I mean:

(The graph I drew is in the image. I hope it makes sense! Sorry for my bad handwriting, I'm not used to writing on computers.)

I hope this helps!

-No one

A circular flower bed is 24m in diameter and has a circular sidewalk around it that is 2m wide. Find the area of the sidewalk in square meters. Use 3.14 for pie (round to nearest 10th)

Answers

Answer:

163.3m²

Step-by-step explanation:

area = Pi(r²)

r = d / 2

r = 12

12² = 144

144 x 3.14 = 452.16

diameter of bigger circle = 24 + 4 (2 on each side)

28 / 2 = 14

14² = 196

196 x 3.14 = 615.44

sidewalk = bigger - smaller

sidewalk = 615.44 - 452.16

sidewalk = 163.3


Triangle ABC has side lengths AB= 25 units, BC = 24 units and AC = 7 units. Triangle ABC is mapped to triangle A'B'C' by a reflection across a
horizontal line and translated left 12 units
What is the length of segment B'C'?
A. 25 units
B. 12 units
C. 24 units
D. 7 units

Answers

Answer: C. 24 units

Step-by-step explanation:

C is the correct answer. This is because the length of the segment doesn't change when reflected along the x-axis or translated left or right. The length of a segment only changes if the given figure is stretched or compressed, which doesn't occur in the given case or question.

The answer is C. 24 units

The population of the town of fort mill was 10,811 in 2010. what is the population in 2016 if it grew 7.5% per year

Answers

Answer:

16,688 people lived in that town in 2016.

Step-by-step explanation:

10,811 + 7.5% = 11,621.8 = 11,622 (2011)

11,622 + 7.5% = 12,493.6 = 12,494 (2012)

12,494 + 7.5% = 13,431.05 = 13,432 (2013)

13,432 + 7.5% = 14,439.4 = 14,440 (2014)

14,440 + 7.5% = 15,523 (2015)

15,523 + 7.5% = 16,687.225 = 16,688 (2016)

Victor+earns+a+gross+annual+income+of+$84,482+and+is+buying+a+home+for+$185,500. +he+is+making+a+15%+down+payment+and+financing+the+rest+with+a+25-year+loan+at+4. 25%+interest

Answers

Answer:

185,500 -.15(185,500)=157,675

Yes he can afford it, it doesn't go over his income and it's %27 below.

I neeed helpppppppppppppppppppp

Answers

Answer:

1: 1; 3: 4; 5: 3

Step-by-step explanation:

when you have a negative exponent it basically is the regular exponent but the number is put over one

so 2^-2 is 1/2^2 which is 1/4

1/4 * 4 is 1

then for three

you have

(1/2)^-1

when the number is a fraction and you have a negative exponent you can put the number on the top

so this is 2

2 * 2 is 4

for the last one

anything times 0 is 1

this means that the answer is 3

Answer:

1. 1

3. 4

5. 3

Step-by-step explanation:

3.y= 2 (1/2)^x where x= -2

1/2=2^-1

(2^-1)^-1

-1×-1

=1

=2^1

2 (2)

=4

1. y=4 (2)^x

2^-2

1/2^2

=1/4

=4×1/4

=1

5.y=3 (1/3)^X

1/3=3^-1

(3^-1)^0

3^0

=1

3(1)

=3

A certain type of steel is 65% iron. How many pounds of iron are in 120 pounds of this steel?

Answers

= 65% x 120 = 78 pounds of iron

Answer:

78

Step-by-step explanation:

65% of 120 = 78

consider the equation 21= m +14 1/6 which which step will help to solve this equation

Answers

Answer:

m = 41/6

Step-by-step explanation:

21 = m + 14 1/6

Convert everything into improper fractions with a denominator of 6.

21 = m + 14 1/6126/6 = 6m/6 + 85/6126 = 6m + 856m = 126 - 856m = 41m = 41/6

Do number 27 please

Answers

Answer:

To find the volume of this figure, we must find the base area(pentagon) and multiply it by the figure's height.

Formula for area of a pentagon:-

A = 1/2 x p x a

Where 'p' represents the perimeter, and 'a' represents the apothem.

First, let's figure out the perimeter of the base pentagon.

One side of this pentagon is 10cm, and there are 5 side lengths of 10cm to this pentagon. So it'll result in (5 x 10) = 50cm altogether.

The apothem is given, 6.9cm.

So, we plug these into our formula:-

A = 1/2 x p x a

A = 1/2 x 50 x 6.9

A = 50/2 x 6.9

A = 25 x 6.9

A = 172.5cm, is the area of the pentagon.

Now we find the height of this figure and multiply it by the base area we've found(pentagon).

Our height is 17cm.

172.5(17)

= 2,932.5 cubic centimetres, is our volume.

Keiko drove 225 miles using 10 gallons of gas. At this rate, how many gallons of gas would she need to drive 441 miles?

Answers

Answer:

19.6 gallons

Step-by-step explanation:

divide 225 by 10 and you get 22.5 this means you are getting 22.5 miles per gallon so all you have to do is divide 441 by 22.5 and you get 19.6 so you are going to need 19.6 gallons to drive 441 miles

Sam rode a bull for 8 seconds.
Maddie rode a bull for 2 fewer seconds than Sam did.
How long did Maddie ride her bull?

Answers

Answer:

is it 7?

Step-by-step explanation:

if he rode for 8 seconds and it says she rode for 2 seconds FEWER are you not subtracting from 8 to get 7?

put the equation below into vertex form.

y=(x+9)(x+25)

Answers

Answer:

Step-by-step explanation:

Writing linear functions
Use the graph or table to write a linear function that relates y to x

Answers

Step-by-step explanation:

3. Slope is postive

x1=6

x2=3

y1=10

y2=6

m=6-10/3-6

m=4/3

y=mx+b find b

10=4/3*3+b

10=4+b

b=6

y=4/3x+b

4.slope is zero

y=b

Y=3

Determine if (2, - 1) is a solution 2x - 4y = 8 to the system - 3x + 6

Answers

Answer:

not a solution

Step-by-step explanation:

substitute the coordinates of the point into both equations and compare values on both sides. If both equations are true then the point is a solution.

2(2) - 4(- 1) = 4 + 4 = 8 ← true

- 3(2) + 6 = - 6 + 6 = 0 ≠ - 1

then (2, - 1 ) is not a solution of the system

¡Practicamos!

create 10 sentences answer the questions asked

use this vocabulary:
el menú

la cuenta

el camarero / la camarera

el azúcar

el tenedor

la sal

la pimienta

la servilleta

el cuchillo

la cuchara

el vaso

el plato

la taza

me faltan

le traigo

me trae

de nada

¿algo más?

delicioso

¡Qué rica!

pedir

Tengo calor

Tengo frío

el postre

otro

tengo sueño

ahora

¿Qué desean Uds?



During the party, you will help serve food. To practice, pretend that you have to answer the following questions from guests.

1. ¿Dónde están los platos?

2. Me faltan la sal y la pimienta. ¿Me trae a la mesa?

3. ¡Qué rico! ¿Necesito azúcar o ya estátext annotation indicator en el café?

4. ¿Uds tiene camareros o necesito servir comida para mis niños?

5. Describe el menú por favor.

6. ¿Tienen otros postres con el pastel?

7. Necesito pedir refrescos. ¿Qué tipo tienen Uds.?

8. ¿Dónde están las servilletas?

9. Tengo frío. ¿Tienen Uds. algunas mesas a fueratext annotation indicator, en el sol?

10. ¿Cuál es la comida mejor, que Ud. recomienda?

Answers

Answer:

All

Computing

Commerce

verb

past tense: wrote

1.

mark (letters, words, or other symbols) on a surface, typically paper, with a pen, pencil, or similar implement.

"he wrote his name on the paper"

Similar:

put in writing

write down

put down

put in black and white

commit to paper

jot down

note

note down

make a note of

set down

take down

mark down

record

register

log

list

make a list of

inscribe

sign

scribble

scrawl

pencil

2.

compose, write, and send (a letter) to someone.

"I wrote a letter to Alison"

Similar:

correspond

write a letter

communicate


A toy is on sale for 15%. If the sales price is $79.90, what was the original price?

helpp mee

Answers

Answer:

$94.00

Step-by-step explanation:

First, do [tex]79.9*\frac{100}{85}[/tex]

Then multiply to get your answer of 94.

Yea just checked at the original price is 94.00

Answer these questions

Answers

Answer:

62

8.8

2.7

Step-by-step explanation:

that should be right. try that out

Answer:

62,8.8,2.8

Step-by-step explanation:

simplified?

(7 × 10^7) × (7 × 10^-2)

Answers

4.9 x 10^6

Good luck on your assignment

Need help. can anyone please give an explanation along with the answer?

Answers

Answer:

what's the question

Step-by-step explanation:

Determine whether the following sequence is geometric. If so, find the common ratio,
1.-3.9. - 27,...

Answers

Answer:

Yes, the sequence is geometric

common ratio (r) = -3

Step-by-step explanation:

Given:

[tex]a_1=1[/tex][tex]a_2=-3[/tex][tex]a_3=9[/tex][tex]a_4=-27[/tex]

If a sequence is geometric, common ratio [tex]r[/tex]:

[tex]r=\dfrac{a_4}{a_3}=\dfrac{a_3}{a_2}=\dfrac{a_2}{a_1}[/tex]

Substituting the given values:

[tex]\implies \dfrac{a_4}{a_3}=\dfrac{-27}{9}=-3[/tex]

[tex]\implies \dfrac{a_3}{a_2}=\dfrac{9}{-3}=-3[/tex]

[tex]\implies \dfrac{a_2}{a_1}=\dfrac{-3}{1}=-3[/tex]

Therefore, as

[tex]\dfrac{a_4}{a_3}=\dfrac{a_3}{a_2}=\dfrac{a_2}{a_1}=-3[/tex]

the sequence is geometric with common ratio of -3

Use the dot plot to answer the question.

A dot plot that has 3 dots at 1, 4 dots at 2, 3 dots at 3, 4 dots at 4, 5 dots at 5, & 3 dots at 6.

What is the mean of the data set in the dot plot?

Enter your answer as a number rounded to the nearest tenth, like this: 42.5

Answers

The mean of the data set is 2.20

A and b are supplementary angles. angle a measures 67° what is the measure of angle b​

Answers

Answer:

113°

Step-by-step explanation:

because supplementary angles add up to 180°

thus if a is 67° then we subtract 67° from 180° and b will be 113°

PLEASE HELP ASAP NO LINKS
Henry has a part-time job selling computers. He works 6.5 hours each day,
• The function p(x) = 65 + 25x models his daily earnings, where x is the number
sells during the day.
• Henry sells 3 to 10 computers per day.
Which interval contains all of the values in the range of the function
(A) 3 5 p(x) S 10

10 s p(x) S 185
C
75 s p(x) S 250
D) 140 S P(x) S 315

Answers

function : p(x) = 65 + 25(x)

for 3 sells

p(3) = 65 + 25(3)p(3) = 140

for 10 sells

p(10) = 65 + 25(10)p(10) = 315

So,

140 ≤ p(x) ≤ 315

Answer:

D) 140 ≤ p(x) ≤ 315

Step-by-step explanation:

Domain

Henry sells 3 to 10 computers per day3 ≤ x ≤ 10

Range

To find the range, input the values of the domain of the functionp(3) = 65 + 25(3)p(3) = 65 + 75 = 140p(10) = 65 + 25(10) p(10) = 65 + 250 = 315Range ⇒ 140 ≤ p(x) ≤ 315

A village loses 20% of their goats to the flood and 5% die from diseases. There are 8084 goats left, how many goats were their originally.

Answers

Answer:

10779

i think some error in this question

Rowan has 3 pieces of yarn, as described below. *a red piece of yarn that is 3/4 foot long *a yellow piece of yarn that is 6/8 foot long * a blue piece of yarn that is 4/12 foot long Wich number sentence correctly compares the lengths of 2 of these pieces of yarn. A 3/4 < 3/6 B 4/12 < 3/4 C 3/4 > 6/8 D 4/12 > 6/8

Answers

Answer:

b

Step-by-step explanation:

because all the orher ones are wrong and not correct.

What is the volume of this cone? Use 3.14 for pi and round your answer to the
nearest tenth.
In your answer, give the volume of the cone rounded to the nearest tenth, and then
explain how you calculated it.

Answers

So I use the formula hopefully these steps work
Other Questions
Jackie has a circular shaped table. She wants to paint the circular top. If the radius of the circle is 3 feet, what is the area of the table top?18.84 square feet28.26 square feet56.52 square feet9.42 square feet Who was the youngest person to sign the constitution. 1. Five types of love exist in Romeo and Juliet: unrequited love, romantic love, parental love, friendship, and love of family honor. Identify the participants in each of these love relationships and explain how they are represented in the play. Does Shakespeare value any of these types-of love more important than the others? Which types of love do you find the most important andwhy? Support your response with evidence from personal experience, and/or quotes orexamnles from the text The age 30 transition can be a difficult period because. Pick the biggest number.A0.193 B0.26 C0.6 D0.308 Which layer abstracts away the need for any other layers to care about what hardware is in use? Find the perimeter.Write your answer as a fraction or as a whole or mixed numbe5 1 cm105 cm10Bloc5cm105 cm10 please help me thanks is the right to vote in political elections. What is one reason that the Tokugawa Shogunate promoted a policy of isolationism in Japan? A. They feared an invasion because their army was weak. B. They thought they were not the equals of European nations. C. Their economy was not prepared to compete in global markets. D. They feared Europeans were using religion to gain political influence. Maria rolls a regular number cube with sides labeled 1 through 6. How many possible outcomes are there? In proteins structure determine the what? of a protein Drag each label to the correct location on the image.What is the impeachment process? The phrases below show the roles of the United States House of Representatives or the United States Senate in an impeachment process.A. casts a vote to determine whether to acquit an impeached official or remove the individual from officeB. conducts hearings to gather evidence against a government officialC. holds a trial and considers the evidence collected against an impeached officialD. holds a vote to determine whether to impeach a government official1. House of Representatives2. US Senate Complete the tableI WILL MARK BRAINLIEST AND GIVE THANKS During metaphase the chromosomes line up along the:. Fill in the blank/s with the correct answer/sRachel: This is a beautiful table! I love it! Is it new?Camila: Well, it's new for me! I bought it yesterday at a house sale. Rachel: Really?the sale?Camila: On Fourth Street and Second Avenue, next to the library. Rachel: . A big sale?Camila: Yes. lots of things for sale, like furniture, clothes, toys, and books. Rachel: That sounds like fun. Why didn't you tell me about it?Camila: Because you told me busy with work. Rachel: Oh yeah. I was busy with work. Were you happy with the price you paid for the table?Camila: Yes,. ! I got it for a really good price. how would changing the proportions in an alloy change its properties Match the scenario to the STEM professional it represents.1.) Trey analyzed the geothermal site to help obtain the necessary building permits. 2.) Erika analyzed data to determine the site that would yield the best energy supply. 3.) Noah analyzed the contents pumped to the surface from the underground reservoir. a.) hydrologist b.) geologistc.) environmental scientist Complete the sentences. Use the comparative.one.1. Joe's car isn't very fast. He wants a2. My job isn't very interesting. I want to do something,3. The weather isn't very warm today. Yesterday it was4. People aren't very polite today. In the past they were5. This sofa isn't very comfortable. That one is6. This coat is nice, but I think the other one is Did you include any of the following information in your list? new technology, such as electricity and telephones new methods for raising capital the creation of corporations and new business practices the expansion of railroads, particularly in the West