Statistics for the Behavioral Sciences, Loose-leaf Version
10th Edition
ISBN: 9781305862807
Author: GRAVETTER
Publisher: CENGAGE L
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Chapter 9, Problem 7P
The following sample of
Scores: 2, 2, 6, 2
a. Compute the sample
b. Compute the estimated standard error for
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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 9 Solutions
Statistics for the Behavioral Sciences, Loose-leaf Version
Ch. 9 - Under what circumstances is a t statistic used...Ch. 9 - A sample of n=16 scores has a mean of M=56and a...Ch. 9 - Find the estimated standard error for the sample...Ch. 9 - Explain why tdistributions tend to be flatter and...Ch. 9 - Find the t values that form the boundaries of the...Ch. 9 - Find the t value that forms the boundary of the...Ch. 9 - The following sample of n=4 scores was obtained...Ch. 9 - The following sample was obtained from a...Ch. 9 - A random sample of n=12 individuals is selected...Ch. 9 - A random sample of n=25 individuals is selected...
Ch. 9 - To evaluate the effect of a treatment, a sample is...Ch. 9 - To evaluate the effect of a treatment, a sample of...Ch. 9 - The spotlight effect refers to overestimating the...Ch. 9 - ]14. Many animals, including humans, tend to avoid...Ch. 9 - Standardized measures seem to indicate that the...Ch. 9 - Weinstein, McDermott, and Roediger (2010) report...Ch. 9 - Ackerman and Goldsmith (2011) found that students...Ch. 9 - A random sample of n=16 scores is obtained from a...Ch. 9 - A random sample is obtained from a population with...Ch. 9 - An example of the vertical-horizontal illusion is...Ch. 9 - In the Preview for this Chapter, we discussed a...Ch. 9 - Oishi and Schimmk (2010) report that people who...Ch. 9 - Research examining the effects of preschool...
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