Get an education: In 2012 the General Social Survey asked 844 adults how many years of education they had. The sample mean was 8.54 years wit tandard deviation of 8.58 years. Part: 0 / 2 Part 1 of 2 (a) Construct a 99% confidence interval for the mean number of years of education. Round the answers to two decimal places. A 99% confidence interval for the mean number of years of education is <μ<|

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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Get an education: In 2012 the General Social Survey asked 844 adults how many years of education they had. The sample mean was 8.54 years with a
standard deviation of 8.58 years.
Part: 0 / 2
Part 1 of 2
(a) Construct a 99% confidence interval for the mean number of years of education. Round the answers to two decimal places.
A 99% confidence interval for the mean number of years of education is
<μ<
Transcribed Image Text:Get an education: In 2012 the General Social Survey asked 844 adults how many years of education they had. The sample mean was 8.54 years with a standard deviation of 8.58 years. Part: 0 / 2 Part 1 of 2 (a) Construct a 99% confidence interval for the mean number of years of education. Round the answers to two decimal places. A 99% confidence interval for the mean number of years of education is <μ<
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(b) Data collected in an earlier study suggest that the mean in 2000 was 6.93 years. A sociologist believes that the mean in 2012 is the same. Does the
confidence interval contradict this claim? Explain.
The confidence interval (Choose one) ▼ contradict this belief.
does / does not
x
Transcribed Image Text:(b) Data collected in an earlier study suggest that the mean in 2000 was 6.93 years. A sociologist believes that the mean in 2012 is the same. Does the confidence interval contradict this claim? Explain. The confidence interval (Choose one) ▼ contradict this belief. does / does not x
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