Question: You may need to use the appropriate technology to answer this question. To test whether the mean time needed to mix a batch of material

 You may need to use the appropriate technology to answer this

You may need to use the appropriate technology to answer this question. To test whether the mean time needed to mix a batch of material is the same for machines produced by three manufacturers, a chemical company obtained the following data on the time (in minutes) needed to mix the material. Manufacturer 1 2 20 28 19 125 25 20 25 30 24 2 2 33 17 (a) Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use a = 0.05. State the null and alternative hypotheses. Ho: At least two of the population means are equal. H : At least two of the population means are different. OHO: H1 = H2 - H3 H. : Not all the population means are equal. O Ho: H1 = H2 = H3 Hai H1 + H2 + 13 O Ho: Not all the population means are equal. Hai H1 = H2 = H3 OHo: H1 + H2 + H3 Ha: H1 = H2 - H3 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.) p-value = State your conclusion. Do not reject Ho. There is not sufficient evidence to conclude that the mean time needed to mix a batch of material is not the same for each manufacturer. Do not reject Ho. There is sufficient evidence to conclude that the mean time needed to mix a batch of material is not the same for each manufacturer. Reject Ho. There is not sufficient evidence to conclude that the mean time needed to mix a batch of material is not the same for each manufacturer. Reject Ho. There is sufficient evidence to conclude that the mean time needed to mix a batch of material is not the came for each manufacturer

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