A survey of 25 randomly chosen students at a particular college found that the mean number of years the students were out of school before enrolling at the college was 7.6 years, with a sample standard deviation of 1.4 years. Find the 99% confidence interval for the mean number of years the students were out of school before enrolling at the college. For the scenario above with the mean number of years students were out of school before enrolling in college, find the 99% confidence interval for the mean again, but this time with the assumption that the population standard deviation is 2.3 years.
A survey of 25 randomly chosen students at a particular college found that the mean number of years the students were out of school before enrolling at the college was 7.6 years, with a sample standard deviation of 1.4 years. Find the 99% confidence interval for the mean number of years the students were out of school before enrolling at the college. For the scenario above with the mean number of years students were out of school before enrolling in college, find the 99% confidence interval for the mean again, but this time with the assumption that the population standard deviation is 2.3 years.
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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