Statistical Techniques in Business and Economics
Statistical Techniques in Business and Economics
18th Edition
ISBN: 9781260579611
Author: Douglas Lind; William Marchal; Samuel Wathen
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 15, Problem 64DA

a.

To determine

Check whether people can conclude that less than 40% of the districts buses are old.

Find the p-value.

b.

To determine

Find the median maintenance cost and the median age of the buses.

Check whether the age of the bus is related to the amount of the maintenance cost.

c.

To determine

Check whether there is a relationship between the maintenance cost and the manufacturer of the bus.

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Statistical Techniques in Business and Economics

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