Question 12.113

17. Vegetable Prices. Refer to Exercise 14.

  1. Test whether the population mean price is the same for all three years, using a one-way ANOVA and level of significance .
  2. Compare your conclusions in Exercises 14 and 17(a). Did the randomized block design help us to find significance?

12.3.17

(a)

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: Not all the population means are equal. Reject if the .

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The is not . Therefore we do not reject . There is not enough evidence to conclude at level of significance that not all of the population mean prices of the vegetables are the same for all three years.

(b) Yes.