I am having trouble understanding how to solve part D of this problem I have fou

Question

I am having trouble understanding how to solve part D of this problem I have found the answers to all other parts to be: A. 15.005 B. 15.1 C. 25.57 D. ? goun o uOllI Sample burse sprayers aron the country revealed the following heights and tested. of horses would sold developed by this unit. a. Find a point estin b. Find a point estin ground to llil ound the country revealed the following heights at auctions around the uctions a in hands). t HORSEHT PUMPS 13.7 11.0 17.1 19.3 14.6 14.4 13.8 165 12.2 17.9 16.8 16.3 12.8 18.7 by this pump. 15.8 13.7 18.7 10.4 15.6 11.7 12.8 by this pump c. Use your answer interval estimate 8.16 Travel and Tra Area Rapid Transit ( a. Find a point estimate for the population mean height of all tof all 8.16 T horses sold at auctions. all horses sold at auctions. height of all horses sold at auctions. short. Find a point estimate for the true proportion of short b. Find a point estimate for the population median height of learn if bikes on boa random sample of ri enough room for bik selected, 671 indicat it would be too crow a. Find a point es who believe th b. Find a point e riders who be c. Let pa denote between all B room for pass believe it is t c. Find a point estimate for the population variance of the d. Any horse with a height less than 14.5 hands is considered horses sold at auctions. 8.13 Biology and Environmental Science few During the first weeks of January every year, biologists associated with the aural Resources physically count ducks, geese, and swans Us. Fish and Wildlife Service and the Maryland Department of c. Letp de i the Chesapeake Bay. In 2013 these scientists counted n Mallards Find a point

Explanation / Answer

d)

Proportion is 9 / 20

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