Hypothesis Testing

Question 1

A hypothesis test has a significance level of 10%. Explain what this significance level represents.

Revolt · Accepted Answer

The significance level determines the critical region of the hypothesis test. A significance level of 10% means that there is a 10% probability of rejecting the null hypothesis incorrectly. Which did you include in your response?A significance level of 10% means that there is a 10% probability of rejecting the null hypothesis incorrectly.The significance level determines the critical region of the hypothesis test.

Question 2

Based on the hypothesis test, what conclusion can be drawn about Delmar’s claim?

Revolt · Accepted Answer

Delmar practices at least 2 hours a day.

Question 3

The z-statistic for a sample of Delmar’s practice times is 1.41. How should this statistic be interpreted in terms of the hypothesis test?

Revolt · Accepted Answer

There is not enough evidence to reject .

Question 4

The critical value for z* for a hypothesis test of the claim at 5% significance is z* = 1.96. How should the z-statistic for the sample be interpreted in terms of the hypothesis test?

Revolt · Accepted Answer

The null hypothesis should be rejected.

Question 5

What is the z-statistic for the sample? Round the answer to the nearest hundredth.z =

Revolt · Accepted Answer

2.07

Question 6

To the nearest hundredth, the z-statistic isz =

Revolt · Accepted Answer

1.19

Question 7

What is the critical value for z for a hypothesis test using a 5% significance level?z* = 1.651.962.58

Revolt · Accepted Answer

1.65

Hypothesis Testing Answers

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