A data set includes 108 body temperatures of healthy adult humans for which x=98
ID: 3357643 • Letter: A
Question
A data set includes 108 body temperatures of healthy adult humans for which x=98.2°F and s=0.64°F.
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°F? What does the sample suggest about the use of 98.6°F as the mean body temperature?
a. what is the confidence interval estimate of the population mean ?
??°F < < ??°F (round to THREE decimal places as needed)
b. do the confidence interval limits contian 98.6°F? YES or NO?
c. what does this suggest about the use of 98.6°F as the mean body temp?
(A) this suggests that the mean body temp could be lower than 98.6°F
(B) this suggests that the mean body temp could very possibly be 98.6°F
(C) this suggests that the mean body temp could be higher than 98.6°F
Explanation / Answer
The statistical software output for this problem is:
One sample T summary confidence interval:
: Mean of population
99% confidence interval results:
Hence,
a) 99% confidence interval:
98.038 < < 98.362
b) This suggests that the mean body temp could be lower than 98.6°F.
Option A is correct.
Mean Sample Mean Std. Err. DF L. Limit U. Limit 98.2 0.061584029 107 98.038492 98.361508