11.52 Does the price of fresh fruit smoothies differ between Boost juice, Naked Juice and Funky juice outlets.A researcher collected the price of a sample of five products at each of the outlets (in dollars).

Boost juice: 4.9 , 9.1 , 8.9, 7.4, 5.3

Naked Juice: 5.9, 5.5, 7.3, 6.3, 7.5

Funky Juice: 6.7, 9.5, 7.2, 7.0, 8.1

a. At the 0.05 level of significance:

i. Is there evidence of a significant difference in the variance of the fruit smoothie prices?

ii. Is there evidence of a difference between mean fruit smoothie prices?

b. IF appropriate, use the Tukey-Kramer procedure and a 0.05 level of significance to determine which outlet significantly differs with respect to mean price.

c. What conclusions can you reach?