*18.13. Refer to Cash offers Problem 16.10. Assume that the error terins are approximately normally distributed. sign and Andissis of Single-linctor Studies a. Examine by means of the Hartley test whether or not the ireatment error variances areequal; use =.01. State the alternatives. decision rule. and conclusion. Whal is the P-value of the test? b. Would you reach the same conclusion as in part (a) with the Brown-Forsythe test? 6.10. Cash offers. A consumer organization studied the effect of age of automobile owner on size of cash offer for a used car by utilizing 12 persons, in each of three age groups (young, middle, elderly) who acted as the owner of a used car. A medium price, six-year-old car was selected for the experiment, and the "owners" solicited cash offers for this car from 36 dealers selected at random from the dealers in the region. Randomization was used in assigning the dealers to the "owners." The offers (in hundred dollars) follow. Assume that ANOVA model (16.2) is applicable. *18.13. Refer to Cash offers Problem 16.10. Assume that the error terins are approximately normally distributed. sign and Andissis of Single-linctor Studies a. Examine by means of the Hartley test whether or not the ireatment error variances areequal; use =.01. State the alternatives. decision rule. and conclusion. Whal is the P-value of the test? b. Would you reach the same conclusion as in part (a) with the Brown-Forsythe test? 6.10. Cash offers. A consumer organization studied the effect of age of automobile owner on size of cash offer for a used car by utilizing 12 persons, in each of three age groups (young, middle, elderly) who acted as the owner of a used car. A medium price, six-year-old car was selected for the experiment, and the "owners" solicited cash offers for this car from 36 dealers selected at random from the dealers in the region. Randomization was used in assigning the dealers to the "owners." The offers (in hundred dollars) follow. Assume that ANOVA model (16.2) is applicable