SM 261 C2 Statistics Summer 2018 Homework: Assignment #7 Chapter 7 Score: 0 of 1
ID: 2907421 • Letter: S
Question
SM 261 C2 Statistics Summer 2018 Homework: Assignment #7 Chapter 7 Score: 0 of 1 pt 7.3.13 colleen Burke &1 /25418 78 A 23 of 29 (24 complete) Hw Score: 73 74%, 21 38of29pt A data set includes 106 body temperatures of healthy adult humans for which z 98.9F andF Complete parts (a) and the standard normal distribution table a. What is the best point estimate of the mean body temperature of all healthy humans? The best point estimate is 98.9 F (Type an integer or a decimal) b. Using the sample statistics, construct a 99% confidence interval estimate of the mean body temperature ofal healhy humans Do hecalde en nite contain 98 6 F? What does the sample suggest about the use of 98 6°F as the mean body temperature? What is the 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 remainingExplanation / Answer
Solution:- Given x = 98.9 and s = 0.62 , n = 106
99% confidence interval for the Z = 2.576
b. 99% confidence interval of the mean body temperature = X +/- Z*s/sqrt(n)
= 98.9 +/- 2.576*0.62/sqrt(106)
= 98.7449 , 99.0551
= (98.745 , 99.055) rounded
=> No,This suggests that the mean body temperature could be higher than98.6 degrees F.
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