Question

This Question: 1 pt 13 of 13 (0 complete) This Test: 13 A data set includes 109 body temperatures or healthy adult humans for which X 98.3 F and s 054 F Complete parts a and b) below a. What is the best point estimate of the mean body temperature of all healthy humans? The best point estimate is 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 D suggest about the use of 986 F as the mean body temperature? What is the confidence interval estimate of the population mean ?? o the conf dence interval limits contain 98 6 F? What does the sam Round to three decimal places as needed.) Do the confidence intervail limits contain 98.6 F Click to select your answer(s) 7/6/20 OType here to seaich 2 3 4 5

Answer 1

a]

Sample mean is the best point estimsate of the mean body temperature of all healthy humas

The best point estimate is $\bar{x}$ = 98.3 ^oF

b]

Here    $\bar{x} = 98.3$ $\mu = 98.6$    and

Using MINITAB

One-Sample Z

Test of mu = 98.6 vs not = 98.6
The assumed standard deviation = 0.54

N     Mean    SE Mean        99% CI            Z      P
109 98.3000   0.0517 (98.1668, 98.4332) -5.80 0.000

99% Confidence interval for population mean $\mu$ is

98.167 ^oF < $\mu$ < 98.433 ^oF

But the given confidence interval dose not contain $\mu$ = 98.6 ^oF