Stats: Modeling the World Nasta Edition Grades 9-12
Stats: Modeling the World Nasta Edition Grades 9-12
3rd Edition
ISBN: 9780131359581
Author: David E. Bock, Paul F. Velleman, Richard D. De Veaux
Publisher: PEARSON
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Chapter 5, Problem 30E

a)

To determine

To find which of the summary statistics are most appropriate for describing these distributions.

a)

Expert Solution
Check Mark

Answer to Problem 30E

Median and IQR.

Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 5, Problem 30E , additional homework tip  1

Calculation:

The shape of the both distributions are right skewed as mean and median differ a lot. Therefore, when the distribution is skewed then the median is a better measure of center and IQR is better measure of spread.

b)

To determine

To explain if there any evidence that seeding clouds may be effective.

b)

Expert Solution
Check Mark

Answer to Problem 30E

Yes.

Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 5, Problem 30E , additional homework tip  2

Calculation:

The first quartile and third quartile and the median are all larger for the seeded clouds than for the unseeded clouds. Hence, there is an evidence that seeding clouds may be effective.

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