Question

The data in the accompanying table gives the food segment (burger, chicken, pizza, or sandwich) and average sales per unit ($ thousands) for each of 28 quick-service brands. Complete (a) through (d) below. Click here to view the data table. Click here to view a partial table of critical values of the Studentized Range, Q. FSTAT = 0.86 (Round to two decimal places as needed.) Determine the critical value. F\alpha = 3.01 (Round to two decimal places as needed.) Reach a decision. Do not reject H0. There is insufficient evidence of a difference in the mean U.S. average sales per unit among the food segments. b. At the 0.05 level of significance, is there a difference in the variation in U.S. average sales per unit ($ thousands) among the food segments? Determine the hypotheses. Choose the correct answer below. A. H0: $\sigma_1^2 = \sigma_2^2 = \dots = \sigma_4^2$ H1: Not all $\sigma_j^2$ are equal B. H0: $\sigma_1^2 = \sigma_2^2 = \dots = \sigma_{28}^2$ H1: Not all $\sigma_j^2$ are equal (where j = 1,2,...,28) C. H0: $\sigma_1^2 = \sigma_2^2 = \dots = \sigma_{28}^2$ H1: Not all $\sigma_j^2$ are equal D. H0: $\sigma_1^2 = \sigma_2^2 = \dots = \sigma_4^2$ H1: Not all $\sigma_j^2$ are equal (where j = 1,2,...,4) Find the test statistic. FSTAT = (Round to two decimal places as needed.)

          The data in the accompanying table gives the food segment (burger, chicken, pizza, or sandwich) and average sales per unit ($ thousands) for each of 28 quick-service brands. Complete (a) through (d) below.
Click here to view the data table.
Click here to view a partial table of critical values of the Studentized Range, Q.
FSTAT = 0.86 (Round to two decimal places as needed.)
Determine the critical value.
F\alpha = 3.01 (Round to two decimal places as needed.)
Reach a decision.
Do not reject H0. There is insufficient evidence of a difference in the mean U.S. average sales per unit among the food segments.
b. At the 0.05 level of significance, is there a difference in the variation in U.S. average sales per unit ($ thousands) among the food segments? Determine the hypotheses. Choose the correct answer below.
A. H0: $\sigma_1^2 = \sigma_2^2 = \dots = \sigma_4^2$
H1: Not all $\sigma_j^2$ are equal
B. H0: $\sigma_1^2 = \sigma_2^2 = \dots = \sigma_{28}^2$
H1: Not all $\sigma_j^2$ are equal (where j = 1,2,...,28)
C. H0: $\sigma_1^2 = \sigma_2^2 = \dots = \sigma_{28}^2$
H1: Not all $\sigma_j^2$ are equal
D. H0: $\sigma_1^2 = \sigma_2^2 = \dots = \sigma_4^2$
H1: Not all $\sigma_j^2$ are equal (where j = 1,2,...,4)
Find the test statistic.
FSTAT =  (Round to two decimal places as needed.)

The data in the accompanying table gives the food segment (burger, chicken, pizza, or sandwich) and average sales per unit (thousands) for each of 28 quick-service brands. Complete (a) through (d) below.
Click here to view the data table.
Click here to view a partial table of critical values of the Studentized Range, Q.
FSTAT = 0.86 (Round to two decimal places as needed.)
Determine the critical value.
Fα = 3.01 (Round to two decimal places as needed.)
Reach a decision.
Do not reject H0. There is insufficient evidence of a difference in the mean U.S. average sales per unit among the food segments.
b. At the 0.05 level of significance, is there a difference in the variation in U.S. average sales per unit ( thousands) among the food segments? Determine the hypotheses. Choose the correct answer below.
A. H0: σ1^2 = σ2^2 = … = σ4^2
H1: Not all ^2 are equal
B. H0: σ1^2 = σ2^2 = … = σ28^2
H1: Not all ^2 are equal (where j = 1,2,...,28)
C. H0: σ1^2 = σ2^2 = … = σ28^2
H1: Not all ^2 are equal
D. H0: σ1^2 = σ2^2 = … = σ4^2
H1: Not all ^2 are equal (where j = 1,2,...,4)
Find the test statistic.
FSTAT = (Round to two decimal places as needed.)

Added by Kim C.

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