An environmental psychologist investigated ways to reduce waste. He randomly assigned office workers in small businesses to three groups: (1) to be in a control group, (2) to receive daily e-mail reminders about the importance of recycling, or (3) to have their current wastebaskets replaced with much smaller wastebaskets. make sure they didn't influence each other, each worker was selected from a different small business. At the end of the week, the psychologist mea- sured how many pounds of office waste each person had generated. Here are the data: Smallor Wactobaskets
An environmental psychologist investigated ways to reduce waste. He randomly assigned office workers in small businesses to three groups: (1) to be in a control group, (2) to receive daily e-mail reminders about the importance of recycling, or (3) to have their current wastebaskets replaced with much smaller wastebaskets. make sure they didn't influence each other, each worker was selected from a different small business. At the end of the week, the psychologist mea- sured how many pounds of office waste each person had generated. Here are the data: Smallor Wactobaskets
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 28PPS
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Transcribed Image Text:9. An environmental psychologist investigated ways to reduce waste. He randomly
assigned office workers in small businesses to three groups: (1) to be in a control
group, (2) to receive daily e-mail reminders about the importance of recycling, or
(3) to have their current wastebaskets replaced with much smaller wastebaskets. To
make sure they didn't influence each other, each worker was selected from a
different small business. At the end of the week, the psychologist mea- sured how
many pounds of office waste each person had generated. Here are the data:
Control group
Daily email reminders
Smaller Wastebaskets
12
14
6.
12
4
14
18
10
8.
12
M = 14
M = 12
M = 6
s = 2.83
s = 2
s= 2
SSbetween = 114
a. What test will you do?
b. What are the hypotheses?
c. What is the decision rule?
d. Calculate the test
e. Report results (Table and APA)
f. What do these results mean?
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