Quiz about MATH 2328 Test 3 Review

Question 1

True/False: The sample mean is an unbiased estimator of the population mean.

Accepted Answer

True

Answer

False

Question 2

True/False: The sample range is an unbiased estimator of the population range.

Accepted Answer

False

Answer

True

Question 3

True/False: The underlying distribution needs to be normal for the Central Limit Theorem to hold.

Accepted Answer

False

Answer

True

Question 4

True/False: We use a confidence interval to describe a parameter.

Accepted Answer

True

Answer

False

Question 5

True/False: The null hypothesis is always expressed as an equality.

Accepted Answer

True

Answer

False

Question 6

If the p-value is not small, we ____ the null hypothesis.

Accepted Answer

Fail to reject

Answer

Accept

Answer

Reject

Answer

Prove

Question 7

A 99% confidence interval for p^ says that:

Accepted Answer

If we take 100 random samples from a population, we expect 99 of the confidence intervals of p^ to contain the true parameter p.

Answer

There is a 99% probability that the confidence interval contains p.

Answer

p^ deviates from p by at most 1%.

Question 8

The p-value is the probability that:

Accepted Answer

Evidence is obtained for H_a at least as strong as that obtained by chance alone, given that H₀ is true.

Answer

H₀ is true.

Answer

H₀ is true, given that evidence is obtained for H_a at least as strong as that obtained by chance alone.

Answer

Evidence is obtained for H_a at least as strong as that obtained by chance alone.

MATH 2328 Test 3 Review