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2. One-Way Airfares The average one-way airfare from Pittsburgh to Washington, D.C., is $236. A random sample of 20 one-way during a particular month had a mean of $210 with a standard deviation of $43. At a = 0.02, is there sufficient evidence to conclude a difference from the stated mean? Use the sample statistics to construct a 98% confidence interval for the true mean one-way airfare from Pittsburgh to Washington, D.C., and compare your interval to the results of the test. Do they support or contradict one another? Source: www.fedstats.gov

2. One-Way Airfares The average one-way airfare from Pittsburgh to Washington, D.C., is $236. A random sample of 20 one-way during a particular month had a mean of $210 with a standard deviation of $43. At a = 0.02, is there sufficient evidence to conclude a difference from the stated mean? Use the sample statistics to construct a 98% confidence interval for the true mean one-way airfare from Pittsburgh to Washington, D.C., and compare your interval to the results of the test. Do they support or contradict one another? Source: www.fedstats.gov

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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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2. One-Way Airfares The average one-way airfare from Pittsburgh to Washington, D.C., is $236. A random sample of 20 one-way during a particular month had a mean of $210 with a standard deviation of $43. At a = 0.02, is there sufficient evidence to conclude a difference from the stated mean? Use the sample statistics to construct a 98% confidence interval for the true mean one-way airfare from Pittsburgh to Washington, D.C., and compare your interval to the results of the test. Do they support or contradict one another? Source: www.fedstats.gov
Transcribed Image Text:2. One-Way Airfares The average one-way airfare from Pittsburgh to Washington, D.C., is $236. A random sample of 20 one-way during a particular month had a mean of $210 with a standard deviation of $43. At a = 0.02, is there sufficient evidence to conclude a difference from the stated mean? Use the sample statistics to construct a 98% confidence interval for the true mean one-way airfare from Pittsburgh to Washington, D.C., and compare your interval to the results of the test. Do they support or contradict one another? Source: www.fedstats.gov
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