Author Question: Suppose an experiment utilizing a random block design has 4 treatments and 10 blocks for a total of ... (Read 46 times)

cabate · **on:** Feb 14, 2020

Question 1

A local consumer reporter wants to compare the average costs of grocery items purchased at three different supermarkets, A, B, and C. Prices (in dollars) were recorded for a sample of 60 randomly selected grocery items at each of the three supermarkets. In order to reduce item-to-item variation, the prices were recorded for each item on the same day at each supermarket.

The results of the Bonferroni analysis are summarized below.
___________________
________________
Supermarket A B C
Mean Price 1.66 1.80 1.94

Fully interpret the Bonferroni analysis.

Question 2

Suppose an experiment utilizing a random block design has 4 treatments and 10 blocks for a total of 40 observations. Assume that the total Sum of Squares for the response is SS(Total) = 300. If the Sum of Squares for Treatments (SST) is 20% of SS(Total), and the Sum of Squares for Blocks (SSB) is 40% of SS (Total), find the F values for this experiment.
◦ treatments: F = 3.38; blocks: F = 2.70
◦ treatments: F = 6.5; blocks: F = 4.33
◦ treatments: F = 4.50; blocks: F = 3.00
◦ treatments: F = 20.83; blocks: F = 6.94

nikmaaacs · **Reply #1 on:** Feb 14, 2020

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