Author Question: Which one of the following suggests that the data set is approximately normal? (Read 32 times)

colton · **on:** Feb 14, 2020

Question 1

Which of the following is not a method used for determining whether data are from an approximately normal distribution?
◦ Compute the intervals

± s,

± 2s, and

± 3s. The percentages of measurements falling in each should be approximately 68%, 95%, and 100% respectively.
◦ Construct a normal probability plot. The points should fall approximately on a straight line.
◦ Construct a histogram or stem-and-leaf display. The shape of the graph or display should be uniform (evenly distributed).
◦ Find the interquartile range, IQR, and standard deviation, s, for the sample. Then

≈ 1.3.

Question 2

Which one of the following suggests that the data set is approximately normal?
◦ A data set with Q₁ = 2.2, Q₃ = 7.3, and s = 2.1.
◦ A data set with Q₁ = 105, Q₃ = 270, and s = 33.
◦ A data set with Q₁ = 1330, Q₃ = 2940, and s = 2440.
◦ A data set with Q₁ = 14, Q₃ = 68, and s = 41.

chevyboi1976 · **Reply #1 on:** Feb 14, 2020

A FREE account is required to view all solutions!

Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.

Answer Preview

Only 39% of students answer this correctly