A smart phone manufacturer is interested in constructing a 99% confidence interval for the proportion of smart phones that break before the warranty expires. 92 of the 1608 randomly selected smart phones broke before the warranty expired. Round answers to 4 decimal places where possible. a. With 99% confidence the proportion of all smart phones that break before the warranty expires is between ________ and ________. b. If many groups of 1608 randomly selected smart phones are 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 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. 92 of the 1608 randomly selected smart phones broke before the warranty expired. Round answers to 4 decimal places where possible.
a. With 99% confidence the proportion of all smart phones that break before the warranty expires is between ________ and ________.
b. If many groups of 1608 randomly selected smart phones are 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 break before the warranty expires and about________ percent will not contain the true population proportion.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
