According to a study by the American Pet Food Dealers Association, 57 percent of

Question

According to a study by the American Pet Food Dealers Association, 57 percent of U.S. households own pets. A report is being prepared for an editorial in the San Francisco Chronicle. As a part of the editorial a random sample of 335 households showed 195 own pets. Does this data disagree with the Pet Food Dealers Association data? Use a 0.05 level of significance. (a) State the null hypothesis and the alternate hypothesis. (Round your answers to 2 decimal places.) H0: ? = H1: ? ? -------------------------------------------------------------------------------- (b) State the decision rule for 0.05 significance level. (Round your answers to 2 decimal places.) H0 is rejected if z is not between and . (c) Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic (d) Does this data disagree with the Pet Food Dealers Association data? Use a 0.05 level of significance. H0 is (Click to select)rejectednot rejected. There is (Click to select)sufficientinsufficient evidence to show the proportion has changed.

Explanation / Answer

(a) Ho: ? = .57; H1: ? ? .57

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