# Question: In each part we have given the value obtained for

In each part, we have given the value obtained for the test statistic, z, in a one-mean z-test. We have also specified whether the test is two tailed, left tailed, or right tailed. Determine the P-value in each case and decide whether, at the 5% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis.

a. z = −1.25; left-tailed test

b. z = 2.36; right-tailed test

c. z = 1.83; two-tailed test

a. z = −1.25; left-tailed test

b. z = 2.36; right-tailed test

c. z = 1.83; two-tailed test

**View Solution:**## Answer to relevant Questions

State the general steps of the P-value approach to hypothesis testing. The U.S. Department of Agriculture reports in Food Consumption, Prices, and Expenditures that the average American consumed 30.0 lb of cheese in 2001. Cheese consumption has increased steadily since 1960, when the average ...Two types of incorrect decisions can be made in a hypothesis test: a Type I error and a Type II error. a. Explain the meaning of each type of error. b. Identify the letter used to represent the probability of each type of ...Ha: μ1 > μ2 The null hypothesis is H0: μ1 = μ2 and the alternative hypothesis is as specified. We have provided data from a simple random paired sample from the two populations under consideration. In each case, use the ...Glaucoma is a leading cause of blindness in the United States. N. Ehlers measured the corneal thickness of eight patients who had glaucoma in one eye but not in the other. The results of the study were published as the paper ...Post your question