SOLUTION: A simple random sample of 50 women has an average height of 64.1 inches. Assume it is known that the standard deviation of heights for all women in this population is 3.7 inches.
Algebra ->
Probability-and-statistics
-> SOLUTION: A simple random sample of 50 women has an average height of 64.1 inches. Assume it is known that the standard deviation of heights for all women in this population is 3.7 inches.
Log On
Question 1076939: A simple random sample of 50 women has an average height of 64.1 inches. Assume it is known that the standard deviation of heights for all women in this population is 3.7 inches.
(a) Find a 95% confidence level for the mean height of women in the entire population.
_________< μ <_______
(b) The margin of error for this confidence interval is: Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! t df=49, 0.975=2.01
interval is +/- 2.01*s/sqrt(n)=1.05
add and subtract from mean
(63.05, 65.15)
