Last week Tim got a score of X = 54 on a math exam with μ = 60 and σ = 8. He also got X = 49 on an English exam with μ = 55 and σ = 3, and he got X = 31 on a psychology exam with μ = 37 and σ= 4. For which class should Tim expect the best grade?

Q: Hans has scored 75, 73, and 93 on his previous three tests. What score does he need on his next test…

A: Person H has scored 75, 73, and 93 on his last three tests.

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A: According to the given information in this question We need to find the z score of both

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A: p =0.18 n = 2307

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A: Given data isMean(μ)=73.08standard deviation(σ)=6

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A: Concept: one sample t test is used

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