Do Do Fall 2017 Homework: HW10.2 Hypothesis Tests for a Population Proportio Sco

Question

Do Do Fall 2017 Homework: HW10.2 Hypothesis Tests for a Population Proportio Score: 0 of 1 pt 10.2.26 HW Score: 52.68%, 421 of 8 p a survey, 39% of the ofthem spoke to their pet on the telephone Does the veterinarian have anght to be skeptical? Use the -ollevel of signficance. stated that they talk to their pets on the telephone. A veterinarian believed this result to be too high, so she randomly selected 180 pet oaners and dacovered Bhut Bease mpo (1-po)-LD10, the sample size is5%ofthe population size, and the sample[ hypothesis | | 15% ofthe population size, and the sample satisfied Round to one

Explanation / Answer

Answer:

n = sample size = 180

p0 = population proportion = 0.39

np0(1-p0) = 180 * 0.39 * (1 - 0.39) = 42.822

Because np0(1-p0) = 42.833 Is greater than / Is more than 10, the sample size is less than 5% of the population size, and the sample meets the requirements for testing the hypothesis is satisfied.

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