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Given the following observations in a two-way classification with a = 3, b = 4, and c = 2, compute the F-statistics used to test that all interactions are equal to zero (Y u = 0), all column means are equal (/Jj = 0), and all row means are equal (a:; = 0), respectively.
Row/Column
1
3
4
3.1
4.2
2.7
4.9
2.9
3.2
4.5
2
1.8
3.0
2.3
2.4
3.7
4.0
4.6
3.9
4.4
5.0
2.5
What is the value of the new intercept and the slope coefficients associated with X1 and X2? How do they compare with the corresponding values before the transformation?
At the .01 significance level, is the mean grade of the women higher than that of the men? Set up the 5-step hypothesis testing procedure and solve.
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Show the graph of the probability density function for flight time.
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A. What is the standard deviation?
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Discuss a scenario where two-sample hypothesis testing might be useful for you. Explain what a type 1 error would mean for this scenario. Explain what a type 2 error would mean.
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