Scenario 1: Use the following information for the next 19 questions.
Researcher wants to compare test performance for tests printed on three different colors of paper; Red, Green, and the Standard White. The researcher selects a sample of 11 individuals and has each individual take one test on Red paper, another test on Green paper, and a third test on the Standard White paper. The data are listed below. The researcher wants to minimize the probability of making a Type I error.
Subject Red (X - m) (X-M)^2 Green (X - m) (X-M)^2 White (X - m) (X-M)^2 Mean
People
1 90 5 25 88 5 25 86 5 25 88
2 89 4 16 87 4 16 85 4 16 87
3 88 3 9 86 3 9 84 3 9 86
4 87 2 4 85 2 4 83 2 4 85
5 86 1 1 84 1 1 82 1 1 84
6 85 0 0 83 0 0 81 0 0 83
7 84 -1 1 82 -1 1 80 -1 1 82
8 83 -2 4 81 -2 4 76 -5 25 80
9 82 -3 9 80 -3 9 78 -3 9 80
10 81 -4 16 79 -4 16 77 -4 16 79 Grand
11 80 -5 25 78 -5 25 70 -2 4 79 Mean
MEAN 85 0 83 0 81 0 83
SS 110 110 110
N 11 11 11
k 3
Scenario 1: If Appropriate, calculate the 95% Confidence Interval for the Differnce between Red paper and White paper (Note: Subtract Larger Mean Minus Smaller Mean). What is the Upper Bound Value?
- Note: If appropriate to calculate, input answer to 2 decimal places.
If not appropriate to calculate, input 999
Scenario 1: If Appropriate, calculate the 95% Confidence Interval for the Differnce between Red paper and White paper (Note: Subtract Larger Mean Minus Smaller Mean). What is the Lower Bound Value?
- Note: If appropriate to calculate, input answer to 2 decimal places.
If not appropriate to calculate, input 999
Scenario 1: If Appropriate, calculate the 95% Confidence Interval for the Differnce between Green paper and White paper (Note: Subtract Larger Mean Minus Smaller Mean). What is the Upper Bound Value?
- Note: If appropriate to calculate, input answer to 2 decimal places.
If not appropriate to calculate, input 999