certain brand of microwave oven was priced at 10 stores in Dallas and 13 stores in San Antonio. The data follow. Use a 0.05 level significance and test whether prices for the microwave oven are the same in the two cities. Dallas 425 427 435 409 (to 1 decimal) (to 4 decimals) Mean Standard deviation What is the sum of the ranks for Dallas? (to 1 decimal) What is the value of the test statistic? (to 2 decimals) 407 427 446 487 449 413 San Antonio 461 436 466 490 447 488 486 458 419 487 What is the mean and standard deviation of the normal distribution that can be used for this statistical test? 416 439 466 4

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