Question
Asked Nov 15, 2019
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The average price of a college math textbook is $174 and the standard deviation is $23. Suppose that 44 textbooks are randomly chosen. Round all answers to 4 decimal places where possible.

For part b), is the assumption that the distribution is normal necessary? YesNo

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Expert Answer

Step 1

(b)

The conditions for the z-distribution is appropriate as given below:

  • If the sample size is larger (n>30) or the distribution foll...

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Hypothesis Testing

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