A nationwide study of American homeowners revealed that 65% have one or more lawn mowers. A lawn equipment manufacturer, located in Omaha, feels the estimate is too low for households in omaha. Find the P-value for a test of the claim that the proportion with lawn mowers in Omaha is higher than 65%. Among 497 randomly selected homes in Omaha, 340 had one or more lawn
Mowers. Use Table 5.1 to find the best answer.

Question

Quizplus · Accepted Answer

The sample proportion is 340/497 = 0.6843. The null hypothesis is that the proportion is 0.65. Using a one-sample z-test for proportions, the z-score is calculated and then the P-value is found. The P-value for a z-score of approximately 1.60 is about 0.0559.

A Nationwide Study of American Homeowners Revealed That 65% Have