researcher hypothesizes that nurses have higher average salaries than teachers. In conducting an analysis to test this hypothesis, how might the alternative hypothesis be stated? a. Ha: μD = 0 b. Ha: μD ≠ 0 c. Ha: μNurses’ salaries ≠ μTeacher’s salaries d. H0: μNurses ≠ μTeachers

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A: Mean(µ) = 56Standard deviations (σ) = 2.8X ~ N (µ, σ )= N(56, 2.8) For n = 22

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A: Birth Weight, x Length, y 11 19 6 17 5 15 5 18 3 16 5 15 8 17 9 18 4 16 3 15

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A: Here Given graph of distribution

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A: normal distribution μ = 152 cmσ = 30 cmP(x<140) = ?

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A:

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A: H0:μd≤0Ha:μd>0

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A: Population mean μ =100 Population standard deviation =15

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A: Population mean, μ=23 Population sd, σ=4

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A: T distribution with 2 degrees of freedom

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A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 15 X~N (100, 15)

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