# Question

Suppose that you are considering a hypothesis test for a population mean, μ. In each part, express the alternative hypothesis symbolically and identify the hypothesis test as two tailed, left tailed, or right tailed.

a. You want to decide whether the population mean is different from a specified value μ0.

b. You want to decide whether the population mean is less than a specified value μ0.

c. You want to decide whether the population mean is greater than a specified value μ0.

a. You want to decide whether the population mean is different from a specified value μ0.

b. You want to decide whether the population mean is less than a specified value μ0.

c. You want to decide whether the population mean is greater than a specified value μ0.

## Answer to relevant Questions

A right-tailed test with α = 0.05. Determine the critical value(s) for a one-mean z-test. For each exercise, draw a graph that illustrates your answer. What is the P-value of a hypothesis test? When does it provide evidence against the null hypothesis? In each part, we have given the P-value for a hypothesis test. For each case, refer to Table 9.8 to determine the strength of the evidence against the null hypothesis. a. P = 0.06 b. P = 0.35 c. P = 0.027 d. P = 0.004 Right-tailed test: a. z = 1.24 b. z = −0.69 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 ...x-bar = 24, n = 15, σ = 4, H0: μ = 22, Ha: μ > 22 We have provided a sample mean, sample size, and population standard deviation. In each case, use the one-mean z-test to perform the required hypothesis test at the 5% ...Post your question

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