21 of 21 (11 complete) w 7.2.11 Question He A data set includes 106 body tempera

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21 of 21 (11 complete) w 7.2.11 Question He A data set includes 106 body temperatures of healthy adult hurmans having a mean of 98 9°F and a standard deviation of 0 62F Construct a 0% contidence unt healthy humans. What does the sample suggest about the use of 98 6°F as the mean body temperature? Click here lo view a t distibution table Click here lo view page 1 of the standard normal distribution table Click here lo view page 2 of the standard normal distribution table What is lhe confidence interval estimate of the population mean ? (Round to three decimal places as needed) Enter your answer in the edit fields and then click Check Answer Clear All

Explanation / Answer

Here' the answer in detail with explanations:

n = 106
Mean = 98.9 F
Stdev .62 F
99% CI has a Z value of 2.575

So, mean +/- Z*Stdev/sqrt(n)
=98.9+/- 2.575*.62/sqrt(106)
= 98.745 to 99.055

Ci estimate of Mu =
98.745 < Mu < 99.055

The sample suggests that 98.6 is lying outside this 99% CI estimate and thus use of 98.6 as mean body temperature
is unusual

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