According to one​ source, 48​% of plane crashes are due at least in part to pilot error. Suppose that in a random sample of 100 separate airplane​ accidents, 59 of them were due at least in part to pilot error. Complete parts​ (a) and​ (b) below. a. Test the hypothesis that the proportion of airplane accidents due to pilot error is not 0.48. Use a significance level of 0.05. Determine the null and alternative hypotheses.

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