In 2010, the Mean for the Number of Pets Owned

Essay

In 2010, the mean for the number of pets owned per household was 1.9. A poll of 1023 households conductedthis year reported the mean for the number of pets owned per household to be 1.8. Assuming σ = 1.1, is theresufficient evidence to support the claim that the mean number of pets owned has changed since 2010 at the α =0.1 level of significance?10.6 The Probability of a Type II Error and the Power of the Test1 Determine the probability of making a Type II error and compute the power of the test.