
2122 - Midterm 2 Review
Authored by Phuong Vu
Social Studies
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The variance of the sampling distribution of sample means is equal to the variance of the population mean divided by the square root of the sample size.
TRUE
FALSE
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When computing the confidence interval for the population proportion, the Student's t-distribution is used rather than the normal distribution.
TRUE
FALSE
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
As the confidence level for a confidence interval increases, the width of the interval also increases.
TRUE
FALSE
4.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Suppose that: n=675 and sample proportion = 0.1. Find the UCL of the confidence interval for estimating the population proportion for a 90% confidence interval.
(Round to the nearest 2 decimal points)
5.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
6.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
TRUE
FALSE
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