Question

Which of the following is NOT a step in hypothesis testing? Select one: a. Find the confidence interval. b. Use the level of significance and the critical value approach to determine the critical value of the test statistic c. Formulate the null and alternative hypotheses d. Use the rejection rule to solve for the value of the sample mean corresponding to the critical value of the test statistic. When population standard deviation (σ) is unknown, we use sample standard deviation (s) to estimate σ.

Then the margin of error, the interval estimate for the population and hypothesis test are based on a probability distribution known as the Select one: a. t-distribution. b. z-distribution. c. degrees of freedom. d. both z and t distribution.

Answer 1

Answer: Which of the following is NOT a step in hypothesis testing?

Solution:

The option a) is correct answer.

Find the confidence interval is NOT a step in hypothesis testing.

Accept option a) all are the steps involved in hypothesis testing.

Answer: When population standard deviation (σ) is unknown, we use sample standard deviation (s) to estimate σ.

Then the margin of error, the interval estimate for the population and hypothesis test are based on a probability distribution known as t-distribution.

The option a) is correct answer.

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