
Module 8
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Try to match each of the statements written using mathematical notation with their “meaning” finding the statement that matches.
The null hypothesis is that the difference between the two true/underlying means is equal to zero
n = 20
p1 > p2
x̄ = 12.1
p1 = p2
H0: μ1 – μ2 = 0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Try to match each of the statements written using mathematical notation with their “meaning” finding the statement that matches.
The sample mean is 12.1
n = 20
p1 > p2
x̄ = 12.1
p1 = p2
H0: μ1 – μ2 = 0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Try to match each of the statements written using mathematical notation with their “meaning” finding the statement that matches.
The population proportion for the first group is equal to the population proportion for the second group
n = 20
p1 > p2
x̄ = 12.1
p1 = p2
H0: μ1 – μ2 = 0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Try to match each of the statements written using mathematical notation with their “meaning” finding the statement that matches.
The sample size is 20
n = 20
p1 > p2
x̄ = 12.1
p1 = p2
H0: μ1 – μ2 = 0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Try to match each of the statements written using mathematical notation with their “meaning” finding the statement that matches.
The population proportion for the first group is greater than the population proportion for the second group
n = 20
p1 > p2
x̄ = 12.1
p1 = p2
H0: μ1 – μ2 = 0
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Suppose a researcher was originally going to use a sample of 400 to construct a confidence interval, but now only has a budget to use a sample of 100. This means the size of their sample has _____________ (decreased/increased)
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Suppose a researcher was originally going to use a sample of 400 to construct a confidence interval, but now only has a budget to use a sample of 100. This means the size of their sample has decreased
This also means that the researcher will have (less/more) data, which means their confidence interval will be (narrower/wider), as it will be harder for them to precisely estimate the parameter of interest.
Select the 2 correct answers from the boxes below
less
more
narrower
wider
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