9.8  In a study of 10 new producers of iron supplements, nine contrasts in the mean iron level in the supplements were constructed by the quality control department for comparing various characteristics of the producers. a. In order to achieve an experimentwise error rate of .05, what value should be selected for the value of aI? b. What is the critical value for the F statistic for testing the nine contrasts if there were six samples of the supplement taken from each of the 10 producers?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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9.8 

In a study of 10 new producers of iron supplements, nine contrasts in the mean iron level in the supplements were constructed by the quality control department for comparing various characteristics of the producers.

a. In order to achieve an experimentwise error rate of .05, what value should be selected for the value of aI?

b. What is the critical value for the F statistic for testing the nine contrasts if there were six samples of the supplement taken from each of the 10 producers?

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For this question, why is the numerator always 1 for the F-statistic?

 

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