a. With 95% confidence the proportion of all smart phones that break before the warranty expires is between and b. If many groups of 1508 randomly selected smart phones ate selected, then a different confidence interval would be produced for each group. About percent of these confidence intervals will contain the true population proportion of all smart phones that brea before the warranty expires and about percent will not contain the true populat proportion. Submit Question

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A smart phone manufacturer is interested in constructing a 95% confidence interval for the
proportion of smart phones that break before the warranty expires. 92 of the 1508 randomly
selected smart phones broke before the warranty expired. Round answers to 4 decimal places
where possible.
a. With 95% confidence the proportion of all smart phones that break before the warranty
expires is between
and
b. If many groups of 1508 randomly selected smart phones afe 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
percent of these
before the warranty expires and about
percent will not contain the true population
proportion.
Submit Question
MRB
目
2
6.
o8 7
Transcribed Image Text:A smart phone manufacturer is interested in constructing a 95% confidence interval for the proportion of smart phones that break before the warranty expires. 92 of the 1508 randomly selected smart phones broke before the warranty expired. Round answers to 4 decimal places where possible. a. With 95% confidence the proportion of all smart phones that break before the warranty expires is between and b. If many groups of 1508 randomly selected smart phones afe 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 percent of these before the warranty expires and about percent will not contain the true population proportion. Submit Question MRB 目 2 6. o8 7
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