Which of the following samples will have the smallest value for the estimated standard error?
A) n = 25 with s2 = 100
B) n = 25 with s2 = 400
C) n = 100 with s2 = 100
D) n = 100 with s2 = 400
Question 2Which of the following accurately describes the chi-square test for independence?
A) It is similar to a single-sample t test because it uses one sample to test a hypothesis about one population.
B) It is similar to a correlation because it uses one sample to evaluate the relationship between two variables.
C) It is similar to an independent-measures t test because it uses separate samples to evaluate the difference between separate populations.
D) It is similar to both a correlation and an independent-measures t test because it can be used to evaluate a relationship between variables or a difference between populations.
Question 3Which set of characteristics will produce the smallest value for the estimated standard error?
A) A large sample size and a small sample variance
B) A large sample size and a large sample variance
C) A small sample size and a small sample variance
D) A small sample size and a large sample variance
Question 4Under what circumstances will the chi-square test for goodness of fit produce a large value for a chi-square?
A) when the sample proportions match the hypothesized population proportions
B) when the sample proportions are much different than the hypothesized population proportions
C) when the sample mean is close to the population mean
D) when there is a large difference between the sample mean and the population mean
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