# Question

Suppose that, in a hypothesis test, the null hypothesis is in fact true.

a. Is it possible to make a Type I error? Explain your answer.

b. Is it possible to make a Type II error? Explain your answer.

a. Is it possible to make a Type I error? Explain your answer.

b. Is it possible to make a Type II error? Explain your answer.

## Answer to relevant Questions

Suppose that, in a hypothesis test, the null hypothesis is in fact false. a. Is it possible to make a Type I error? Explain your answer. b. Is it possible to make a Type II error? Explain your answer. Refer to Exercise 9.7. Explain what each of the following would mean. a. Type I error b. Type II error c. Correct decision Now suppose that the results of carrying out the hypothesis test lead to rejection of the null ...Suppose that you want to perform a hypothesis test for a population mean μ. a. Express the null hypothesis both in words and in symbolic form. b. Express each of the three possible alternative hypotheses in words and in ...a. Rejection region. b. Nonrejection region. c. Critical value(s). d. Significance level. e. Construct a graph similar to that in Fig 9.2 on page 350 that depicts your results from parts (a)–(d). f. Identify the hypothesis ...What is the P-value of a hypothesis test? When does it provide evidence against the null hypothesis?Post your question

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