Statistics for Management and Economics (Book Only)
11th Edition
ISBN: 9781337296946
Author: Gerald Keller
Publisher: Cengage Learning
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Chapter 5.3, Problem 14E
To determine
Stratified random sample:
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You need to research about (Personal finance management) using a sample . Describe the steps to be taken in order to use the stratified sampling technique .
Bank clients were asked to indicate their level of satisfaction with the service provided by the bank’s tellers. Responses from a random sample of customers were as follows: 69 were very satisfied, 55 were moderately satisfied, 5 had no opinion, 3 were moderately dissatisfied, and 2 were very dissatisfied. a. Construct a bar chart. b. Construct a pie chart.
Twenty different statistics students are randomly selected. For each of them, their body temperature
(°C)
is measured and their head circumference (cm) is measured.
a. For this sample of paired data, what does r represent, and what does
ρ
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Question content area bottom
Part 1
a. Choose the correct answer below.
A.
r is a parameter that represents the value of the linear correlation coefficient that would be computed by using all of the paired data in the population of all statistics students, and
ρ
is a statistic that represents the value of the linear correlation coefficient computed from the paired sample data.
B.
r is a statistic that represents the proportion of the variation in head circumference that can be explained by variation in body temperature, and
ρ
is a parameter that represents…
Chapter 5 Solutions
Statistics for Management and Economics (Book Only)
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