Lock, Statistics: Unlocking the Power of Data, 2e Help I System Announcements PR

Question

Lock, Statistics: Unlocking the Power of Data, 2e Help I System Announcements PRINTER Vn Chapter 6, Section 2-D, Exercise 078 Is a t-Distribution Appropriate? A sample with size n 75 has x = 18.92, and s 10.1 . The dotplot for this sample is given below. o00o o0o0o o oo0000 0000000000 O 10 20 30 40 50 60 Indicate whether or not it is appropriate to use the f-distribution. If it is appropriate, give the degrees of freedom for the t-distribution and give the estimated standard error. If it is not a 1 in both of the answer f ch

Explanation / Answer

Yes, T distrubution can be approximate

Degreee of freedom = 75-1 = 74

Standard Error = 10.1/SQRT(75) = 1.17

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