Question: A research organization tested microwave ovens. At = 0.10, is there a significant difference in the average prices of the three types of oven?

A research organization tested microwave ovens. At Î± = 0.10, is there a significant difference in the average prices of the three types of oven?

A computer printout for this exercise is shown. Use the P-value method and the information in this printout to test the claim.

Assume that all variables are normally distributed, that the samples are independent, and that the population variances are equal. Also, for each exercise, perform the following steps.
a. State the hypotheses and identify the claim.
b. Find the critical value.
c. Compute the test value.
d. Make the decision.
e. Summarize the results, and explain where the differences in the means are.
Use the traditional method of hypothesis testing unless otherwise specified.

Watts 900 270 135 200 1000 800 180 155 240 245 190 215 160 230 250 120 250 200 140 200 210 140 180 130 Computer Printout for Exercise l ANALYSIS OF VARIANCE SOURCE TABLE Source Bet Groups W/I Groups Total DESCRIPTIVE STATISTICS Condit df Sum of Squares 21729.735 20402. 083 42131.818 Mean Square p-value 2 19 10864.867 1073.794 10.118 0.00102 21 Means St Dev 1000 900 800 233.333 203.12!5 155.62!5 28.23 39.36 28.21

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