Identify the Null Hypothesis, Alternative Hypothesis, Test Statistic, P-Value, Conclusion

question 24

Essay

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim.
-The standard deviation of math test scores at one high school is 16.1. A teacher claims that the standard deviation of the girls' test scores is smaller than 16.1. A random sample of 22 girls results in scores with a standard deviation of 12. Use a significance level of 0.01 to test the teacher's claim.

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Definitions:

Cost of Goods Sold

The total cost directly associated with producing the goods sold by a company, including materials and labor.

PP&E (Net)

The net value of a company's Property, Plant, and Equipment after accounting for depreciation and amortization, representing the tangible assets used in operations.

Ending Balance

Ending balance refers to the amount of money remaining in a particular account at the conclusion of a given period, after all transactions have been accounted for.

Finished Goods

Items that have been completed by the manufacturing process, and are ready for sale to customers.