Question:

To test for any significant difference in the number of

Last updated: 2/4/2024

To test for any significant difference in the number of

To test for any significant difference in the number of hours between breakdowns for four machines the following data were obtained Machine Machine Machine 1 2 3 6 4 7 9 5 3 7 5 8 4 7 1 9 0 7 7 9 7 10 2 9 4 9 8 10 8 Ho H H H3 H4 Ha H H H3 H4 10 0 9 4 10 1 Ho H H H3 H4 Ha H H H3 H4 8 9 8 4 Machine 4 9 7 12 8 12 0 10 6 11 1 a At the x 0 05 level of significance what is the difference if any in the population mean times among the four machines State the null and alternative hypotheses 11 6 O Ho Not all the population means are equal Ha H H H3 H4 O Ho At least two of the population means are equal Ha At least two of the population means are different Ho M H H3 H4 H Not all the population means are equal 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