A smart phone manufacturer is interested in constructing a 99% confidence interval for theproportion of smart phones that break before the warranty expires. 84 of the 1688 randomlyselected smart phones broke before the warranty expired.a. With 99% confidence the proportion of all smart phones that break before the warrantyexpires is betweenandb. If many groups of 1688 randomly selected smart phones are selected, then a differentconfidence interval would be produced for each group. Aboutpercent of theseconfidence intervals will contain the true population proportion of all smart phones that breakbefore the warranty expires and aboutpercent will not contain the true populationproportion.

CI=0.99n=1688X=84p^=xn=841688=0.0498CI=0.99α=1-0.99=0.01

A smart phone manufacturer is interested in constructing a 99% confidence interval for the proportion of smart phones that break before the warranty expires. 84 of the 1688 randomly selected smart phones broke before the warranty expired. a. With 99% confidence the proportion of all smart phones that break before the warranty expires is between and percent of these b. If many groups of 1688 randomly selected smart phones are selected, then a different confidence interval would be produced for each group. About confidence intervals will contain the true population proportion of all smart phones that break before the warranty expires and about percent will not contain the true population proportion.

A smart phone manufacturer is interested in constructing a 99% confidence interval for the proportion of smart phones that break before the warranty expires. 84 of the 1688 randomly selected smart phones broke before the warranty expired. a. With 99% confidence the proportion of all smart phones that break before the warranty expires is between and percent of these b. If many groups of 1688 randomly selected smart phones are selected, then a different confidence interval would be produced for each group. About confidence intervals will contain the true population proportion of all smart phones that break before the warranty expires and about percent will not contain the true population proportion.

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...

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