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Confidence interval for true proportion and its assumptions.

Biting an un-popped kernel of popcorn hurts! As an experiment, a self-confessed connoisseur of Cheap popcorn carefully counted 773 kernels and put them in a popper. After popping, the un-popped kernels were counted. There were 86.

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

(b) Make sure the normality assumption.

(d) Why may this sample not be typical?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M918195

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