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To test for any significant difference in the number of hours between breakdowns for four machines, the following data were obtained Machine Machine Machine Machine
To test for any significant difference in the number of hours between breakdowns for four machines, the following data were obtained Machine Machine Machine Machine 1 2 3 4 6.6 8.9 10.9 9.5 7.8 7.5 10.1 12.4 5.5 9.5 9.5 11.8 7.5 10.2 10.3 10.6 8.4 9.2 9.0 10.9 7.4 9.9 9.0 11.4- (aj At the a = 0.05 level of significance. what is the differencer if any, in the population mean times among the four machines? State the null and alternative hypotheses. Ho: \"1 : \"2 : F's : \"4 Ha:|\"1'i\"2 #143 1|:r4 '3:i' Ho: At least two of the population means are equal. Ha: At least two of the population means are different. [1' Ho: Not all the population means are equal. Ha:'"1= P2 = \"a = \"4 (9) H0: p1 = .112 = #3 = #4 Ha: Not all the population means are equal. i_1' Ho: p1 : [:12 .113 =p4 Ha: "1 = \"2 = \"a = \"4 y Find the value of the test statistic. [Round your answer to two decimal places.) : Find the p-value. (Round your answer to three decimal places.) (b) Use Fisher's LSD procedure to test for the equality of the means for machines 2 and 4. Use a 0.05 level of significance. Find the value of LSD. (Round your answer to two decimal places.) LSD = E Find the pairwise absolute difference between sample means for machines 2 and 4. ix2_X4i=i:i
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