NOTES: 1. You must include a Minitab printout for problem 1 only. 2. Complete st

Question

NOTES: 1.     You must include a Minitab printout for problem 1 only.

                2.     Complete statistical tests by comparing your test statistic to an appropriate critical value.

                3.     Avoid round-off errors! Never round off intermediate results, and display an appropriate number of significant digits in the final answer.

                4.     Any time you perform a statistical test you must state Ho, HA, and your conclusions.

                5.     You do not need to show your calculations for sums, sample means, and sample variances.

Explanation / Answer

a)

Consider:

b)

Ho: The means for all 6 groups are equal.

As F > 2.323, we reject Ho.

There is significant evidence that at least 2 out of the 6 means are not equal. [CONCLUSION]

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Hi! I have assumed that the level of significance is 0.05, as it is not given. If you want to use another significance level, please reubmit this question indicating that significance level. That way we can continue helping you! Thanks!

Source SS df MS F Fcrit T 715.98 90-1=89 B 715.98-577.31=138.67 6-1=5 138.67/5=27.734 27.734/6.872738=4.035364 2.323126 E 577.31 89-5=84 577.31/84=6.872738

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