An airline company is interested in improving customer satisfaction rate from the 78% currently claimed. The company sponsored a survey of 276 customers and found that 229 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is higher than the claim by the company.
An airline company is interested in improving customer satisfaction rate from the 78% currently claimed. The company sponsored a survey of 276 customers and found that 229 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is higher than the claim by the company.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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An airline company is interested in improving customer satisfaction rate from the 78% currently claimed. The company sponsored a survey of 276 customers and found that 229 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is higher than the claim by the company.
Transcribed Image Text:An airline company is interested in improving customer satisfaction rate from the
78% currently claimed. The company sponsored a survey of 204 customers and
found that 169 customers were satisfied.
What is the test statistic z? Ex: 2.22E
What is the p-value? Ex: 0.123E
Does sufficient evidence exist that the customer satisfaction rate is higher than the
claim by the company at a significance level of a = 0.1?
Select -
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