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fetime of electronics: In a simple random sample of l00 electronic components produced by a certain method, the mear Fetime was 125 hours. Assume that component lifetimes are normally distributed with population standard deviation o ours. Round the critical value to no less than three decimal places. %3D Part 1 of 2 (a) Construct an 80% confidence interval for the mean battery life. Round the answer to the nearest whole number. 128 An 80% confidence interval for the mean battery life is 122 | <µ < Part: 1 /2 Part 2 of 2 (b) Find the sample size needed so that a 90% confidence interval will have a margin of error of 3. A sample size of is needed so that a 90% confidence interval will have a margin of error of 3. Round the sample size up to the nearest integer.

fetime of electronics: In a simple random sample of l00 electronic components produced by a certain method, the mear Fetime was 125 hours. Assume that component lifetimes are normally distributed with population standard deviation o ours. Round the critical value to no less than three decimal places. %3D Part 1 of 2 (a) Construct an 80% confidence interval for the mean battery life. Round the answer to the nearest whole number. 128 An 80% confidence interval for the mean battery life is 122 | <µ < Part: 1 /2 Part 2 of 2 (b) Find the sample size needed so that a 90% confidence interval will have a margin of error of 3. A sample size of is needed so that a 90% confidence interval will have a margin of error of 3. Round the sample size up to the nearest integer.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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ifetime of electronics: In a simple random sample of 100 electronic components produced by a certain method, the mean 20 fetime was 125 hours. Assume that component lifetimes are normally distributed with population standard deviation o = ours, Round the critical value to no less than three decimal places. Part 1 of 2 (a) Construct an 80% confidence interval for the mean battery life. Round the answer to the nearest whole number. An 80% confidence interval for the mean battery life is 122 < µ < 128 Part: 1 / 2 Part 2 of 2 (b) Find the sample size needed so that a 90% confidence interval will have a margin of error of 3. A sample size of is needed so that a 90% confidence interval will have a margin of error of 3. Round the sample size up to the nearest integer. Save For Later Submit Assignme Check Answer 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Ce
Transcribed Image Text:ifetime of electronics: In a simple random sample of 100 electronic components produced by a certain method, the mean 20 fetime was 125 hours. Assume that component lifetimes are normally distributed with population standard deviation o = ours, Round the critical value to no less than three decimal places. Part 1 of 2 (a) Construct an 80% confidence interval for the mean battery life. Round the answer to the nearest whole number. An 80% confidence interval for the mean battery life is 122 < µ < 128 Part: 1 / 2 Part 2 of 2 (b) Find the sample size needed so that a 90% confidence interval will have a margin of error of 3. A sample size of is needed so that a 90% confidence interval will have a margin of error of 3. Round the sample size up to the nearest integer. Save For Later Submit Assignme Check Answer 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Ce
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