A teacher wants to estimate the mean time (in minutes) that students take to go from one classroom to the next. His research assistant uses the sample time of 35 students to report the confidence interval as [9.30, 10.70]. (You may find it useful to reference the t table.) a. Find the sample mean time used to compute the confidence interval. (Round final answer to nearest whole number.) Sample mean b. Determine the confidence level if the sample standard deviation used for the interval is 2.449. (Round final answer to nearest whole number.) Confidence level %
A teacher wants to estimate the mean time (in minutes) that students take to go from one classroom to the next. His research assistant uses the sample time of 35 students to report the confidence interval as [9.30, 10.70]. (You may find it useful to reference the t table.) a. Find the sample mean time used to compute the confidence interval. (Round final answer to nearest whole number.) Sample mean b. Determine the confidence level if the sample standard deviation used for the interval is 2.449. (Round final answer to nearest whole number.) Confidence level %
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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