According to one source, 51% of plane crashes are due at least in part to pilot error. Suppose that in a random sample of 100 separate airplane accidents, 62 of them were due at least in part to pilot error. Complete parts a through c below. a. Test the hypothesis that the proportion of airplane accidents due to pilot error is not 0.51. Use a significance level of 0.05. Determine the null and alternative hypotheses. Let p be the proportion of plane crashes due to pilot error. Ho:p HA:P (Type integers or decimals. Do not round.) b. Determine the P-value. (Round to three decimal places as needed.) c. What is the proper conclusion? V Ho because the P-value is V the significance level.

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.