Author Question: The following data are the yields, in bushels, of hay from a farmer's last 10 years: 375, 210, 150, ... (Read 136 times)

DyllonKazuo · **on:** Jul 25, 2018

The following data are the yields, in bushels, of hay from a farmer's last 10 years:
375, 210, 150, 147, 429, 189, 320, 580, 407, 180.
Find the IQR.

A) 279 B) 265 C) 227 D) 253

Question 2

A pharmaceutical testing company wants to test a new cholesterol drug. The average cholesterol of the target population is 200 mg and they have a standard deviation of 25 mg. The company wished to test a sample of people who fall between 1.

5 and 3 z-scores above the mean. Into what range must a candidate's cholesterol level be in order for the candidate to be included in the study?
A) 237.5 - 275 B) 162.5 - 275 C) 225 - 237.5 D) 125 - 162.5