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As an experiment, a self-confessed connoisseur of cheap popc

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As an experiment, a self-confessed connoisseur of cheap popcorn carefully counted 773 kernels and put them in a popper. After popping, the unpopped kernels were counted. There were 86.

(a) Construct a 90 percent confidence interval for the proportion of all kernels that would not pop.

(b) Check the normality assumption.

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The sample proportion is p = x/n = 86/773 = 0.1113
The z-value corresponding to a = 0.10 is 1.645

a. The 90% confidence interval for the proportion of all ...

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