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The Complete Idiot's Guide to Statistics, 2nd Edition by Robert Donnelly

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Chapter 16

1. H0 : µ = 1100 , H1 : µ ≠ 1100 , n = 70 , σ = 310 ,872
873
874
Since p-value ≤ α , we reject H 0 and conclude that the average SAT score does not equal 1100.
2. H0 : µ = 35, H1 : µ ≠ 35, x = 37.9, s = 6.74 , n = 10, d. f . = n - 1 = 9,
875
Since tt , we do not reject Ho and conclude that the average class size equals 35 students.
3. H

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