6. -12 points 0/4 Submissions Used My Notes Ask Your In an experiment to compare

Question

6. -12 points 0/4 Submissions Used My Notes Ask Your In an experiment to compare the tensile strengths of-4 different types of copper wire ) 3 samples of each type were used. The between samples and within samples estimates of 2 were computed as MST-2616.3 and MSE = 1189.2, respectively. (a)If = 0.05 then according to the F distribution with 1-1 and 10-1) degrees of freedom what value of F must our test statistic be larger than in order to reject the null. This value represents what is called the rejection region. rejection region f2 Calculate the test statistic F to test H0:. 2-····4 versus Hai at least two s are unequal. Use a significance level 0.05(Round your answers to two decimal places.) test statistic f State the conclusion in the problem context O Fail to reject Ho. The data indicates a difference in the mean tensile strengths. O Reject Ho. The data indicates there is not a difference in the mean tensile strengths Reject Ho. The data indicates a difference in the mean tensile strengths. Fail to reject Ho The data indicates there is not a difference in the mean tensile strengths (b) What can be said about the P-value for the test? P-value > 0.100 0.050

Explanation / Answer

a)for I-1=3 and Ji-I =8 degree of freedom

rjection region f>=3.5874

test statistic =f =MSTr/MSE =2.20

fail to reject Ho; the data indicates there is not a difference........

b)

p value >0.100

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