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At the 0.10 significance level, can we conclude that less than 90% of the orders are delivered in less than 10 minutes?

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Chicken Delight claims that 90% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 100 orders revealed that 82 were delivered within the promised time. At the 0.10 significance level, can we conclude that less than 90% of the orders are delivered in less than 10 minutes?

Please show all work in Excel spread sheet with formulas

Null Hypothesis
Alternate Hypothesis
Alpha
Choice of test
Critical value of test

Show your work to compute the test in this area. Answer to test you calculated. Interpret your findings

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Solution Summary

The solution is a word document that shows the five steps of hypothesis testing.

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Manal Elkhoshkhany, MBA
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  • MBA, California State University, Sacramento
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