Many questions in research can be expressed as two competing statements about the population parameter. These two statements are called the null and the alternative hypotheses. Usually, the researcher hopes the sample evidence will be in favor of the alternative hypothesis, the new theory. It is important to be able to state the theories that are being put to a test. For the scenario below, write out the hypotheses to be put to the test and define the parameter of interest in context of the problem.
Suppose that 70% of all faculty members at large public universities in the US use iClickers in their classrooms. We would like to assess if the proportion of faculty members at UM who use iClickers in the classroom is less than the stated rate.
Answers
Answer:
Following are the solution to the given question:
Step-by-step explanation:
Please find the complete question in the attached file.
[tex]H_0: p = 0.70\\\\H_a: p < 0.70[/tex]
The parameter p calculates the portion of faculty members utilizing the iClikers throughout the classrooms.
Related Questions
True or False: Cold air is more dense than warm air, causing it to sink and hover near the ground.
Group of answer choices
False
True
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Answer:
True! :)
Step-by-step explanation:
how is 1/2 and 4/8 equivalent
Answers
Answer:
they are both half
Step-by-step explanation:
1 is half of 2 And 4 is half of 8
Find an equation of the tangent line to the curve at the given point. y = x3 − 3x + 2, (3, 20)
Answers
Answer:
[tex]y - 20 = 24(x - 3)[/tex]
Step-by-step explanation:
Equation of a line:
The equation of a line, in point-slope form, has the following format:
[tex]y - y_0 = m(x - x_0)[/tex]
In which the point is [tex](x_0,y_0)[/tex] and the slope is m.
(3, 20)
This means that [tex]x_0 = 3, y_0 = 20[/tex]. So
[tex]y - y_0 = m(x - x_0)[/tex]
[tex]y - 20 = m(x - 3)[/tex]
Slope:
The slope is the derivative of the function at the point:
The function is:
[tex]y = x^3 - 3x + 2[/tex]
The derivative is:
[tex]y^{\prime}(x) = 3x^2 - 3[/tex]
At the point, we have that [tex]x = 3[/tex]. So
[tex]m = y^{\prime}(3) = 3*3^2 - 3 = 27 - 3 = 24[/tex]
So the equation to the tangent line to the curve a the point is:
[tex]y - 20 = 24(x - 3)[/tex]
Matthew and Lizbeth are college students. Matthew has $87 in his bank account. He spends $45 on groceries. He deposits $30 into his account. Then he spends $112 on books for school. Lizbeth has $41 in her bank account. She deposits $50 into her account. Lizbeth says that if she spends $130 on books she will have a greater debt than Matthew. Show are explain why Lizbeth's thinking is correct or incorrect. Enter your work or explanation in the box provided.
Answers
Answer:
$365
Step-by-step explanation:
did the math
PLEASE HELP!!!!! If all the triangles below are the result of one or more rigid transformations, which of the following MUST be true?
All corresponding line segments are congruent.
All corresponding angles are congruent.
All triangles have the same area.
A,B, and C are all correct.
Answers
Answer:
A,B, and C are all correct
Step-by-step explanation:
Rigid transformations do not change figures except for where they are at.
I need help with this question
Answers
B: -5,0
C: 5,0
D: 5,-4
The graphs give the prices of different sizes of TVs available in the market. Which graph contains the line that best fits the given data and shows a positive association?
Answers
Answer:
3.05kilograms to grams
Answer: it’s graph D
:)
okay so for some reason my mind went completely blank and forgot how to do pathagoream theorem. so like could you tell me the steps please
Answers
Answer:
12
Step-by-step explanation:
Pythag Theorem is Leg² + Leg²= Hypotenuse²
So I set it up as: x² + 9²=15²
Then solved and got: x² + 81 =225
Then I subtracted 81 on both sides and got: x² = 144
Then squareroot each side to undo the x² and got x=12
Hope this helps! Have a good day!
Complete the statement about statistical studies.
Asking a group to respond to one or more questions is an example of
v. which is a type of
Reset
an experiment
a survey
a repeated measures design
Answers
Answer:
a survey
observational study
Please give me Brainliest, I really need it.
A Survey is the gathering of information. Asking a group to respond to one or more questions is an example of a survey which is a type of observational study.
What is a survey?A survey is a collection of question asked to a random group of people who represent the entire population, the responses of the group is assumed to be valid for the entire population.
The blank spaces in the statement can be filled as shown below.
Asking a group to respond to one or more questions is an example of a survey which is a type of observational study.
Learn more about Survey:
https://brainly.com/question/17373064
What do I do for this
Answers
Answer:
its 7 or B.
Step-by-step explanation:
7 is the number being repeated the most (dunno if that makes sense so the mode is the most common number in a data set.)
What effect does inflation have on the prices of goods and services?
Ο Α.
Prices decrease.
OB.
Prices double.
O a.
Prices Increase.
D.
Prices stay the same.
Answers
Answer:
price increase
Step-by-step explanation:
.....
Can anyone help me I will really appreciate it.
Answers
Answer:
-9 = Yes
8 = Yes
-8 = Yes
9 = No
Complete the equation of the line through (-10.-7) and (5.9).
15 POINTS PLEASE
Answers
Answer:
y=16/15x-11/3
Step-by-step explanation:
(9--7)/(5--10)
slope = 16/15
y=16/15(x)+b
-9=(16/15)(-5)+b
b=-11/3
How many ways can Rudy choose 5 pizza toppings from a menu of 20
Answers
Answer:
15504 ways
Step-by-step explanation:
[tex]C(n,r)=\frac{n!}{r!(n-r)!} \\\\C(20,5)=\frac{20!}{5!(15)!} \\\\C=15504[/tex]
Imogene's car traveled 504 mi averaging a certain speed. If the car had gone 9 mph faster, the trip would have taken 1 hour less. Find the average speed.
The average speed of the car was mph.
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answer this for brainliest answer
Answers
Answer:
exact form of n=3/2
decimal form of n=1.5
mixed number form of n= 1 1/2
Question 6 of 10
Which of the following appear in the diagram below?
Check all that apply.
zd
ОА. Иму
B. Y
I C. ZXYZ
OD. ZYXZ
SUBMIT
PREVIOUS
Answers
Answer:
83 dz
Step-by-step explanation:
yeahlets bbzkalaamN
What are the sides of the triangle? What is the total length of the side of the big square?
Answers
Answer:
The sides of the the triangle is 7. The total of the the triangle is 24.
Step-by-step explanation:
I count how many triangle there is and is 7. I count all of the side of the triangle and it's 24.
45 plants cost
Rs 180
find cost of 65 Plant
Answers
Answer:
Check pdf
Step-by-step explanation:
Answer:
x=Rs-260Step-by-step explanation:
let x be the cost of 65 plants 45/180=65/xx=Rs-260-6x+5y=1 and 6x+4y=10.simplify
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Answer:
1.)[tex]x=-\frac{1}{6} +\frac{5y}{6}[/tex]
2.)[tex]x=\frac{5}{3} -\frac{2y}{3}[/tex]
look at the picture nd hurry please it needs to be done by 3 I have to do reading too!
Answers
Answer:
First one
Step-by-step explanation:
Even numbers
2 is tossed 10 times
4 is tossed 10 times
6 is tossed 9 times
10 + 10 + 9 = 29
Odd numbers
1 is tossed 8 times
3 is tossed 6 times
5 is toosed 7 times
8 + 6 + 7 = 21
Which expression has a negative value? PLS HELP
Answers
Answer:
A) x+y
Step-by-step explanation:
A) x+y
C & D are automatically out because if you multiply or divide by a negative number, you get a positive number.
B) -11/8-(-11/4)=
-11/8+22/8=11/8 (positive)
Answer:
The answer would be B.
Step-by-step explanation:
The answer is B Because -11/4 -11/8 would equal to -4 1/8 which is negative so the answer is B
Which ones are correct?
Answers
Answer:
a and c
Step-by-step explanation:
Hello. Can y’all help me on this please :)
I would probably give brainliest ?
Answers
Answer:
step 1 is wrong
subtract 15 from both sides
x=46
neither tom nor jerry
Answer:
both answers are wrong, substract 15 from both sides, 46, neither tom nor jerry
Step-by-step explanation:
1. 12 ÷ 4 = 3
2. -2.5=25
x=-10
3. 123-77=46
4. neither one of them because 41+12≠29 and 52-14≠66
You start baby sitting at 5:30 pm. You babysit for 2 hours. What
time will you be done babysitting?
Answers
Answer:
7:30
Step-by-step explanation:
5:30 + 2:00 = 7:30
Answer:
7:30 p.m.
Step-by-step explanation:
you start babysitting at 5:30 you babysit for 2 hours 5 + 2 equals 7 . 7+.30 equals 7:30 p.m.
What is the slope of a line perpendicular to the line whose equation is
X+ 3y = –15. Fully simplify your answer.
PLEASEE help 10 points?
Answers
Answer:
3
Step-by-step explanation:
57. J(0,5), K(0, 0), L(-2, 0), P(4,8), Q(4,3), R(6, 3)
and
59. J(-6, -3), K(1, 5), L(2, -2), P(2, -11), Q(5, -4), R(10, -10)
Answers
Answer:
what you need
Step-by-step explanation:
sbbrma asks dmahh aos. Dan doss TNT saobe Dan dndjd f fjdhej f coapshf f xkslshd d xls HD x jams fnf
Help pls! Need by 2 pm est time. Just do number 2 pls
Answers
7
Step-by-step explanation:
10.9-3.7 = 7.2
Therefore, 7 is the best estimate.
very urgent, how many beans?
Answers
Answer: Well, my best guess would be: 1636 beans
apparently the average weight of a jellybean is 1.1 grams
1.8 kg is 1800 grams
1800 / 1.1 = around 1636
So it's around 1636 jelly beans ?
In the figure below, lines A and B are parallel. Find the m∠5 if m∠1 = 75° and m∠3 = 40°
Answers
Answer:
Angle 5 is 75 degrees
Step-by-step explanation:
angle 1 is congruent to angle 5
so angle 5 is also 75 degrees.
The measure of angle 2 and 5 are 65° and 85° respectively.
What are angles of parallel lines?Angles in parallel lines are angles that are created when two parallel lines are intersected by another line called a transversal.
Given that, lines A and B are parallel.
Here, m∠1 = 75° and m∠3 = 40°
Now, x+m∠2+m∠3=180°
x=m∠1 (Vertically opposite angles)
x=75°
75°+m∠2+40°=180°
m∠2+115°=180°
m∠2=65°
m∠2=m∠4=65° (Interior alternate angles are equal)
Now, m∠4+m∠3+m∠5=180°
65°+40°+m∠5=180°
m∠5=85°
Therefore, the measure of angle 2 and 5 are 65° and 85° respectively.
To learn more about the vertical angle theorem visit:
brainly.com/question/8119520.
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