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A car insurance company claims that 92% of its customers are happy with their service. You randomly call 57 customers, and find that 45 of them are happy. Is this number significantly lower than the claim?

A car insurance company claims that 92% of its customers are happy with their service. You randomly call 57 customers, and find that 45 of them are happy. Is this number significantly lower than the claim?

College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.6: Permutations And Combinations
Problem 5SC: In how many ways can 5 people stand in a line if one person demands to be first?
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Hypothesis testing will consist of four hypothesis tests which you need to complete. each test will require the following:

Type of Test:

Null Hypothesis:

Alternate Hypothesis:

SE:

Test Statistic:

P-value:

Decision:

Sentence:

19. A car insurance company claims that 92% of its customers are happy with their service. You randomly call 57 customers, and find that 45 of them are happy. Is this number significantly lower than the claim?
Transcribed Image Text:19. A car insurance company claims that 92% of its customers are happy with their service. You randomly call 57 customers, and find that 45 of them are happy. Is this number significantly lower than the claim?
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