Author Question: Suppose you want to use a pairedttest to determine if the population means of before-and-after ... (Read 61 times)

heyheyhey · **on:** Feb 26, 2023

Question 1

Suppose two samples of sizes 25 and 35, respectively, are independently drawn from two populations that are both normally distributed. Also assume the population variances are unknown but equal. What is the number of degrees of freedom that thettest statistic would have?

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34

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58

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59

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60

Question 2

Suppose you want to use a pairedt test to determine if the population means of before-and-after measurements are different, and you plan to use samples of size 45. What number of degrees of freedom should you use?

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90

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89

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45

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44

hvhf4k+549qz8f218jyo@shar · **Reply #1 on:** Feb 26, 2023

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