To test for any significant difference in the number of hours between breakdowns for four machines, the following data w

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To Test For Any Significant Difference In The Number Of Hours Between Breakdowns For Four Machines The Following Data W 1 (44.39 KiB) Viewed 64 times

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 6.2 82 103 100 8.2 7.5 10.1 128 SS 9.5 121 7.7 10.3 10.2 109 87 03 9.0 112 7.6 8.7 (a) At the # = 0.05 level of significance, what is the difference, f any, in the population mean times among the four machines? State the null and alternative hypotheses Оно и на у-ва O Hoi At least two of the population means are equal H:At least two of the population means are different. Mo: Not all the population means are equal HEM - MA Оно и * ва ғана Оно и на из на M.: Not all the population means are equal Find the value of the test statistie. (Round your answer to the decimal places) Find the p-value. (Round your answer to three decimal places) p-value State your conclusion Do not reject He. There is not sufficient evidence to conclude that the mean time between breakdowns is not the same for the four machines. Reject H, There is not suficient evidence to conclude that the mean time between breakdowns is not the same for the four machines Reject Ho. There is sufficient evidence to conclude that the mean time between breakdowns is not the same for the four machines. Do not reject Ho. There is sufficient evidence to condote that the mean time between breakdowns is not the same for the four machines (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- Find the pairwise absolute difference between sample means for machines 2 and 4. What conclusion can you draw after carrying out this test? There is a significant difference between the means for machines 2 and 4 There is not a significant difference between the means for machines and