14. Tuna Fish The estimated average prices for a variety of brands of tuna fish, based on prices paid nationally, are shown here

a. Construct the ANOVA table for a completely randomized design.

b. Is there evidence of a significant difference in average price for these packages at the a 5.05 level of significance? At the a 5.01 level of significance?

c. Find a 95% confidence interval estimate of the difference in price between light tuna in water and light tuna in oil.

d. Find a 95% confidence interval estimate of the difference in price between white tuna in water and white tuna in oil.

e. What other confidence intervals might be of interest to the researcher who conducted this experiment?

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Light Tuna White Tuna White Tuna In Water In Water In Oll Light Tuna In Oil .99 .53 1.49 1.27 2.56 .62 1.92 1.41 1.29 1.22 1.92 1.23 1.12 1.27 1.19 1.30 .85 .63 1.35 1.22 1.79 .65 .65 .67 1.29 1.23 .60 .69 .60 1.00 262586 .66 .62 .67 .60 .66 1.27 1.28 Source: From "Pricing of Tuna" Copyright 2001 by Consumers Union of U.S., Inc., Yonkers, NY 10703-1057, a nonprofit organization. Reprinted from the June 2001 issue of Consumer Reports for educational purposes only. No commercial use or reproduction permitted. www.ConsumerReports.org.