34 Graded Asis x td WileyPLUS Lock, Statistics: Unlocking the Power of Data, 2e

Question

34 Graded Asis x td WileyPLUS Lock, Statistics: Unlocking the Power of Data, 2e HelRI PRINTER VERSION BACK Chapter 6, Section 4-D, Exercise 184 Use a t-distribution to answer this question. Assume the samples are random samples from distributions that are reasonably normally distributed, and that a t-statistic will be used for inference about the difference in sample means. State the degrees of freedom used. Find the endpoints of the t-distribution with 2.5% beyond them in each tail if the samples have sizes n' = 17 and n2 = 29, Enter the exact answer for the degrees of freedom and round your answer for the endpoints to two decimal places. degrees of freedom endpoints= ± By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your Question Attempts: 0 of S used SAVE FOR LATER SUEIMIT ANEDWEK Earn Maximum Points available only if you answer this question correctly in two attempts or less udy DOL

Explanation / Answer

Solution:

Degrees of freedom = n1 + n2 -2
= 17 + 29 -2 = 44
End points = ± t0.025, 44
= ± 2.0153

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