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1 45 A random sample of 58 college students shows that average weight is 139...

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1 45 A random sample of 58 college students shows that average weight is 139 lbs with a Standard deviation of 20 lb a Construct a 90 percent confidence intervall for the mean weight of all college students b Does the result in part a means that 90 of students weight is in the range of your CI c If you want to be 99 confident instead and you want to control the maximal error of estimation to be 2 lbs how many more college students need to be collected

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