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
FT-IR experiment
Rutherford Scattering Experiment
The swan neck flask experiment
The experimental design and results of Lester and Gorzalka (1988). On the third test, the female ...
Research Design in Clinical Psychology
An educational institution has total direct labor and material costs of $1964 per student. Its ...