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andom sample of size 35 cows is chosen, and their weights (measured in Newton (N)) an hown below: 235, 221, 222, 230, 241, 224, 202, 233, 225, 226, 254, 228, 223, 322, 341, 334, 235, 356, 226, 232, 129, 126, 317, 109, 227, 334, 105, 277, 155, 143, 234, 256, 378, 259, 228 c) Construct a 90% confidence interval for u. d) What sample size is needed to have 90% confidence in estimating the population mean weigl to within +2N?

andom sample of size 35 cows is chosen, and their weights (measured in Newton (N)) an hown below: 235, 221, 222, 230, 241, 224, 202, 233, 225, 226, 254, 228, 223, 322, 341, 334, 235, 356, 226, 232, 129, 126, 317, 109, 227, 334, 105, 277, 155, 143, 234, 256, 378, 259, 228 c) Construct a 90% confidence interval for u. d) What sample size is needed to have 90% confidence in estimating the population mean weigl to within +2N?

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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The weights of cows are normally distributed with unknown mean and standard deviation. A random sample of size 35 cows is chosen, and their weights (measured in Newton (N)) are shown below: 235, 221, 222, 230, 241, 224, 202, 233, 225, 226, 254, 228, 223, 322, 341, 334, 235, 356, 226, 232, 129, 126, 317, 109, 227, 334, 105, 277, 155, 143, 234, 256, 378, 259, 228 (c) Construct a 90% confidence interval for µ. (d) What sample size is needed to have 90% confidence in estimating the population mean weight to within +2N?
Transcribed Image Text:The weights of cows are normally distributed with unknown mean and standard deviation. A random sample of size 35 cows is chosen, and their weights (measured in Newton (N)) are shown below: 235, 221, 222, 230, 241, 224, 202, 233, 225, 226, 254, 228, 223, 322, 341, 334, 235, 356, 226, 232, 129, 126, 317, 109, 227, 334, 105, 277, 155, 143, 234, 256, 378, 259, 228 (c) Construct a 90% confidence interval for µ. (d) What sample size is needed to have 90% confidence in estimating the population mean weight to within +2N?
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