Solution: Graph: Decision: Conclusion:

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.
Chapter12: Probability
Section12.CR: Chapter 12 Review
Problem 13CR
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Solution:
Graph:
Decision:
Conclusion:
Transcribed Image Text:Solution: Graph: Decision: Conclusion:
Suppose that a survey of 400 randomly selected customers at a restaurant asked them whether
they were happy with their last meal and 81% said that they were. We wish to test the claim at the
a = 0.05 level of significance that more than three quarters of the customers at the restaurant are
happy with their meals.
Given:
State the Null and Alternative Hypothesis
Level of significance:
Transcribed Image Text:Suppose that a survey of 400 randomly selected customers at a restaurant asked them whether they were happy with their last meal and 81% said that they were. We wish to test the claim at the a = 0.05 level of significance that more than three quarters of the customers at the restaurant are happy with their meals. Given: State the Null and Alternative Hypothesis Level of significance:
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