FOR COT Stat & Prob

If the t-computed value is 2.43 and the critical value is 2.01,

what will be the decision?

• A. Reject the null hypothesis

• B. Support the null hypothesis.

•   C. Reject the alternative hypothesis.

• D. Do not reject the null hypothesis.

What is the third step in the hypothesis testing procedure?

• A. Summary of result

• B. State the null and alternative hypotheses.

• C. Determine the test statistic and compute it.

• D. Find the critical value for the test; then draw the critical region.

The mean height of women is less than 64 inches. Which of the following represents the null and alternative hypotheses?

• 
• 
• 
• 

In the hypothesis testing procedure, drawing conclusion from the results should always be the __________ step.

• A. first

• B. second

• C. third

• D. last

Find the critical value(s) for a two-tailed test with alpha 0.05 and n = 13.

• A. - 1.65

• B. + 0.06 and - 0.06

• C. + 2.160 and - 2.160

• D. + 1.96 and - 1.96

It is a value that separates the acceptance region from the rejection region in a normal curve when testing the hypothesis?

• A. t - value

• B. z - value

• C. critical value

• D. computed value

A one sample t-test is conducted on null hypothesis which is population mean is equal to 81.6. The sample mean is 84.1, sample standard deviation is 3.1, and n = 13. What is the t-computed value?

• A. - 4.03

• B. 2.18

• C. 3.25

• D. 1.15