
Inference Test AP Stats
Authored by Anthony Clark
Mathematics
12th Grade

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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is NOT a condition you check for a one sample z test for proportions for an EXPERIMENT?
n x p >= 10
You used random assignment
the sample size is less than 10% of the population size
n(1-p) >=10
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Which of the following is/are TRUE about a TYPE 2 error (select all)?
If you FAIL TO REJECT THE NULL HYPOTHESIS, you might has a type 2 error.
A smaller standard deviation in the sampling distribution means a lower chance of a type 2 error.
If you make a type 2 error then you cannot also have made a type 1 error.
If your Ho is far from the correct value, there is a greater chance of a type 2 error.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the formula for the standard error of the statisitc that we use for a ONE SAMPLE Z TEST FOR POPULATION PROPORTIONS?
(careful they look very similar)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given a confidence interval (0.05, 0.13), what is the point estimate?
0.05
0.13
0.09
0.04
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
If the sample size is 500 and the standard error is 0.0219 for a one sample Z interval for population proportions. Which could be the point estimate, rounded to the nearest tenth? (SELECT ALL)
0.4
0.5
0.6
0.7
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Two Sample Z Interval for Difference in Population Proportions ( 0.03 , 0.07 ) Is the difference between the proportions statistically significant?
NO
Zero is not on the interval
YES
Zero is not on the interval
NO
Zero is on the interval
YES
Zero is on the interval
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Two Sample Z Interval for Difference in Population Proportions ( -0.03 , -0.07 ) Is the difference between the proportions statistically significant?
NO
Zero is not on the interval
YES
Zero is not on the interval
NO
Zero is on the interval
YES
Zero is on the interval
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