An airline company is interested in improving customer satisfaction rate from the 75% currently claimed. The company sponsored a survey of 249 customers and found that 196 customers were satisfied. What is the test statistic z? Ex: 2.22: What is the p-value? Ex: 0.123 Does sufficient evidence exist that the customer satisfaction rate is higher than the claim by the company at a significance level of a = 0.01? Select ✓

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 10E
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CHALLENGE
ACTIVITY
403984.1980994.qx3zqy7
4.6.3: Hypothesis test for a population proportion.
Jump to level 1
An airline company is interested in improving customer satisfaction rate from the
75% currently claimed. The company sponsored a survey of 249 customers and
found that 196 customers were satisfied.
What is the test statistic z? Ex: 2.22=
What is the p-value? Ex: 0.123
Does sufficient evidence exist that the customer satisfaction rate is higher than the
claim by the company at a significance level of a = 0.01? Select
N
2
3
Check
Next
✩
Feedback?
N
3
Transcribed Image Text:CHALLENGE ACTIVITY 403984.1980994.qx3zqy7 4.6.3: Hypothesis test for a population proportion. Jump to level 1 An airline company is interested in improving customer satisfaction rate from the 75% currently claimed. The company sponsored a survey of 249 customers and found that 196 customers were satisfied. What is the test statistic z? Ex: 2.22= What is the p-value? Ex: 0.123 Does sufficient evidence exist that the customer satisfaction rate is higher than the claim by the company at a significance level of a = 0.01? Select N 2 3 Check Next ✩ Feedback? N 3
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