The heights of a random sample of 40 college students showed a mean of 181.7 centimeters and a standard deviation of 6.9 centimeters. (a) Construct a 98% confidence interval for the mean height of all college students. (b) What can we assert with 98% confidence about the possible size of our error if we estimate the mean height of all college students to be 181.7 centimeters? (a) The confidence interval is ____ < u < ________ (Round to two decimal places as needed.) b)What can we assert with 98% confidence about the possible size of our error if we estimate the mean height of all college students to be 181.7 centimeters?
The heights of a random sample of 40 college students showed a mean of 181.7 centimeters and a standard deviation of 6.9 centimeters. (a) Construct a 98% confidence interval for the mean height of all college students. (b) What can we assert with 98% confidence about the possible size of our error if we estimate the mean height of all college students to be 181.7 centimeters? (a) The confidence interval is ____ < u < ________ (Round to two decimal places as needed.) b)What can we assert with 98% confidence about the possible size of our error if we estimate the mean height of all college students to be 181.7 centimeters?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 31PPS
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The heights of a random sample of 40 college students showed a mean of 181.7 centimeters and a standard deviation of 6.9 centimeters.
(a) Construct a 98% confidence interval for the mean height of all college students.
(b) What can we assert with 98% confidence about the possible size of our error if we estimate the mean height of all college students to be 181.7 centimeters?
(a) The confidence interval is ____ < u < ________
(Round to two decimal places as needed.)
b)What can we assert with 98% confidence about the possible size of our error if we estimate the mean height of all college students to be 181.7 centimeters?
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