Lock, Statistics: Unlocking the Power of Data, 2e BACK Chapter 6, Section 4-D, E

Question

Lock, Statistics: Unlocking the Power of Data, 2e BACK Chapter 6, Section 4-D, Exercise 184 Use a I-distribution to answer this question Assume the samples are random samples from distributions that are reasonably normally distributed, and that a -statistic w be used for inference about the dlifference in sample means. State the degrees of freedom used. Find the endpoints of the t-distribution with 2.5% beyend them in eech tallif the samples have sines n13 and n Enter the enact answer for ??? degrees offreedom and round your answer for the endpoires to two dienal pkes. 26 degrees of freedom By accessing this Question Assistance, you wit learn while you earn points based on the Point Potential Policy set by your instructor. Question Altempts: of 5 used SAVE FOR LATE Earn Manximum

Explanation / Answer

Degrees of freedom = n1 + n2 - 2 = 13 + 26 - 2 = 37

For 37 degrees of freedom and 2.5% areas to the left and right:

Endpoint = + 2.03

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