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24-07-2024
Mathematics

Answered

The Widget Ruler Company produces 12" rulers. A sample of 46 rulers has a mean of 12.2" with a standard deviation of 5". The owner decides to do a hypothesis test with a 90% significance level to see if the length of the rulers is greater than 12".
A. What is the null hypothesis?
B. What is the alternative hypothesis?
C. Find the p-value.
D. Use the p-value and alpha values to determine if you reject the null hypothesis.

Answer :

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