Z-Test and T-Test MCQs
Authored by Irene Mayor
Mathematics
University
Used 7+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the main assumption required to perform a z-test?
Unknown population variance
Small sample size
Known population variance
Paired samples
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What sample size is generally considered sufficient for a z-test?
Less than 20
25
30 or more
More than 100
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is NOT a type of z-test?
One-sample z-test
Two-sample z-test
Paired z-test
Chi-square test
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A one-sample z-test is used when:
Comparing two related samples
Comparing two population proportions
Comparing a sample mean to a known population mean
Standard deviation is unknown
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following distributions does the z-statistic follow?
Binomial
Poisson
Normal
Exponential
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When is a paired z-test considered appropriate?
Never
When sample size is large and differences are normally distributed
When samples are independent
When population variances are unknown
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What kind of data is required for a parametric test like the z-test or t-test?
Nominal or ordinal
Interval or ratio
Binary
Categorical
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