1) What are the critical z-values for a two-tailed hypothesis test if the significant level = 0.01?

A. ± 1.96

B. ± 2.33

C. ± 2.58

D. ± 1.65

2) In classical hypothesis testing, the test statistic is to the critical value what the __________.

A. ‘p-value' is to alpha

B. critical value is to alpha

C. test statistic is to the ‘p-value'

D. level of significance is to the test statistic

3)
For a hypothesis test of a single population mean at 95% confidence
level, a calculated Z score of 1.7 supports the conclusion that

A. the population mean is greater than the hypothesized value

B. the null hypothesis cannot be rejected

C. the sample is biased

D. the population mean is less than expected

4) If the paired differences are normal in a test of mean differences, then the distribution used for testing is the

A. normal distribution

B. chi-square

C. student distribution

D. F distribution

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