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Author Question: An egg packing company has stated that the standard deviation of the weights of their grade A large ... (Read 19 times)

burton19126

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on: Aug 1, 2018
An egg packing company has stated that the standard deviation of the weights of their grade A large eggs is .07 ounces or less. The sample variance for 51 eggs was .0065 ounces. Can this sample result confirm the company's claim? Use  = .1.

Question 2

A lumber company has claimed that the standard deviation for the lengths of their six-foot boards is .5 inches or less. To test their claim, a random sample of 17 six-foot boards is selected; and it is determined that the variance of the sample is .4 . Do the results of the sample support the company's claim? Use  = .1.


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lolol

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Reply #1 on: Aug 1, 2018
Answer to Question 1

Since 2 = 66.33 > 63.167 (p-value is between .05 and .10), reject H0; no, the sample result cannot confirm the company's claim.

Answer to Question 2

Since 2 = 25.60 > 23.542, reject H0; no, the sample results do not support the company's claim.


burton19126

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Reply #2 on: Aug 1, 2018
Both answers were spot on, thank you once again


lolol

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Reply #3 on: Aug 1, 2018
Great! Please up vote :D


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