Please answer this question using excel and show work! Problem #15 (from Section 6.4 “Interval Estimates”): A survey of
Posted: Sun Sep 05, 2021 5:13 pm
Please answer this question using excel and show
work!
Problem #15 (from Section 6.4 “Interval
Estimates”): A survey of 26 college freshmen found that
they average 6.85 hours of sleep each night. A 90% confidence
interval had a margin of error of 0.497. Part a:
What are the lower and upper limits of the confidence interval?
Part b: What was the standard deviation, assuming
that the population standard deviation is known?
work!
Problem #15 (from Section 6.4 “Interval
Estimates”): A survey of 26 college freshmen found that
they average 6.85 hours of sleep each night. A 90% confidence
interval had a margin of error of 0.497. Part a:
What are the lower and upper limits of the confidence interval?
Part b: What was the standard deviation, assuming
that the population standard deviation is known?