A data set includes 109 body temperatures of healthy adult humans for which x =

Question

A data set includes 109 body temperatures of healthy adult humans for which x = 98.3 degree F and s = 0.54 degree F. Complete parts(a) and (b) below. What is the best point estimate of the mean body temperature of all healthy humans? The best point estimate is degree F. (Type an integer or a decimal.) b Using the sample statistics, construct a 99% confidence interval estimate of the mean body temperature of all healthy humans. Do the confidence interval limits contain 98.6 degree F? What does the sample suggest about the use of 98.6 degree F as the mean body temperature? What is the confidence interval estimate of the population mean mu? degree F

Explanation / Answer

a) best point estimate =98.3

b) std error =std deviation/(n)1/2 =0.0517

for (n-1=108) degree of freedom and 99% CI ; t=2.6221

hence 99% CI =sample mean -/+ t*Std error =98.164 ; 98.436

contain 98.6 --No

option B : this suggest that the mean body temperature could be lower then 98.6 degree

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