
Two Population Hypothesis Tests
Authored by Egla Mansi
Social Studies
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is the null hypothesis for a two-sample t-test?
The means of the two samples are equal
The means of the two samples are not equal
The variances of the two samples are equal
The variances of the two samples are not equal
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A researcher wants to test if there is a significant difference between the mean income of men and women in a particular city. Which of the following tests should be used?
Paired t-test
Independent t-test
ANOVA
Chi-squared test
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is the correct interpretation of a p-value of 0.01 in a two-sample t-test?
There is a 1% chance that the null hypothesis is true
There is a 1% chance that the alternative hypothesis is true
There is a 99% chance that the null hypothesis is true
There is a 99% chance that the alternative hypothesis is true
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following assumptions is not required for a two-sample t-test?
The sample sizes are large
The data are normally distributed
The samples are independent
The variances of the two samples are equal
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A statistician is interested in comparing the mean ages of two populations. Which of the following is the null hypothesis?
μ1 > μ2
μ1 ≠ μ2
μ1 < μ2
μ1 = μ2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A researcher wants to test whether the mean heights of two groups of basketball players are different. Which of the following tests should be used?
Chi-square test for independence
T-test for independent samples
T-test for dependent samples
Z-test for independent samples
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which test should be used to determine if there is a difference in the proportion of males and females who prefer cats as pets?
T-test
Z-test
ANOVA
Chi-square test
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