Quick rule to verified confidence interval for proportion

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Reference no: EM1315129

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

(b) Check the normality assumption.

(d) Why might this sample not be typical?

A. Try the Very Quick Rule. Does it work well here? Why, or why not?

B. Why might this sample not be typical?

Reference no: EM1315129

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