BASIC BUSINESS STATISTICS-STUD.SOLN.MAN
14th Edition
ISBN: 9780134685045
Author: BERENSON
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 29PS
A hotel management company runs 10 hotels in a resort area. The hotels have a mix of pricing–some hotels have budget–priced rooms, some have moderate–priced rooms and some have deluxe–priced rooms. Data are collected that indicate the number of rooms that are occupied at each hotel on each day of month. Explain how the 10 hotels can be recoded into these three price categories.
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Question 2
The data below provides the battery life of thirty eight (38) motorcycle batteries.
100 83 83 105 110 81 114
99 101 105 78 115 74 96
106
89
94 81 106 91 93 86
79 103 94 108 113 100
117 120
77 93
93 85 76
89 78 88
680
a. Test the hypothesis that mean battery life is greater than 90. Use the 1% level of
significance.
b. Determine if the mean battery life is different from 80. Use the 10% level of
significance. Show all steps for the hypothesis test
c. Would your conlcusion in part (b) change at the 5% level of significance? |
d. Confirm test results in part (b) using JASP. Note: All JASP input files and output
tables should be provided
Suppose that 80% of athletes at a certain college graduate. You randomly select eight athletes. What’s the chance that at most 7 of them graduate?
Suppose that you flip a fair coin four times. What’s the chance of getting at least one head?
Chapter 1 Solutions
BASIC BUSINESS STATISTICS-STUD.SOLN.MAN
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