Statistics
13th Edition
ISBN: 9780135820100
Author: MCCLAVE, James T., Sincich, Terry
Publisher: PEARSON
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Chapter 13, Problem 47UP
To determine
Explain whether the specified statement is true or false.
Expert Solution & Answer
Answer to Problem 47UP
False.
Explanation of Solution
It is given that if the null hypothesis is rejected then there is a causal relationship between the two categorical variables.
In chi-square test of independence the hypotheses are given below:
Here, if the null hypothesis is rejected then it can be said that the two variables are dependent.
If in a relationship, the occurrence of the 1st variable causes the 2nd variable, it can be said that there is a causal relationship between the two variables.
Therefore, it is clear that if two variables are dependent, that does not imply about causal relationship between the two variables.
Therefore, the statement is false.
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GISS
Worksheet 10
Jesse runs a small business selling and delivering mealie meal to the spaza shops.
He charges a fixed rate of R80, 00 for delivery and then R15, 50 for each packet of
mealle meal he delivers. The table below helps him to calculate what to charge
his customers.
10
20
30
40
50
Packets of mealie
meal (m)
Total costs in Rands
80
235
390
545
700
855
(c)
10.1.
Define the following terms:
10.1.1. Independent Variables
10.1.2. Dependent Variables
10.2.
10.3.
10.4.
10.5.
Determine the independent and dependent variables.
Are the variables in this scenario discrete or continuous values? Explain
What shape do you expect the graph to be? Why?
Draw a graph on the graph provided to represent the information in the
table above.
TOTAL COST OF PACKETS OF MEALIE MEAL
900
800
700
600
COST (R)
500
400
300
200
100
0
10
20
30
40
60
NUMBER OF PACKETS OF MEALIE MEAL
Chapter 13 Solutions
Statistics
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Ch. 13.3 - Prob. 23UPCh. 13.3 - Prob. 24UPCh. 13.3 - Prob. 25UPCh. 13.3 - 10.19 Find the rejection region for a test of...Ch. 13.3 - Prob. 27LMCh. 13.3 - Prob. 28LMCh. 13.3 - Prob. 29LMCh. 13.3 - Prob. 30LMCh. 13.3 - Prob. 31ACBCh. 13.3 - Prob. 32ACBCh. 13.3 - Prob. 33ACBCh. 13.3 - Healing heart patients with music, imagery, touch,...Ch. 13.3 - Prob. 35ACBCh. 13.3 - Prob. 36ACICh. 13.3 - Prob. 37ACICh. 13.3 - Prob. 38ACICh. 13.3 - Detecting Alzheimer’s disease at an early age....Ch. 13.3 - Prob. 40ACICh. 13.3 - Prob. 41ACICh. 13.3 - Prob. 42ACICh. 13.3 - Prob. 43ACICh. 13.3 - Prob. 44ACICh. 13.3 - Prob. 45ACACh. 13.3 - Prob. 46ACACh. 13 - Prob. 47UPCh. 13 - What is the difference between a one-way...Ch. 13 - Prob. 49LMCh. 13 - Prob. 50LMCh. 13 - Prob. 51ACBCh. 13 - Prob. 52ACBCh. 13 - Prob. 53ACBCh. 13 - Prob. 54ACBCh. 13 - Prob. 55ACBCh. 13 - Prob. 56ACBCh. 13 - Prob. 57ACBCh. 13 - Prob. 58ACBCh. 13 - Prob. 59ACBCh. 13 - Masculinity and crime. Refer to the Journal of...Ch. 13 - Prob. 61ACICh. 13 - Prob. 62ACICh. 13 - Prob. 63ACICh. 13 - Prob. 64ACICh. 13 - Prob. 65ACICh. 13 - Prob. 66ACICh. 13 - Prob. 67ACICh. 13 - Prob. 68ACICh. 13 - Prob. 69ACICh. 13 - Prob. 70ACICh. 13 - Prob. 71ACACh. 13 - Prob. 72ACACh. 13 - Prob. 73CTC
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