3 Salaries of college and non-college graduates were compared. Results are shown below: Educ Level College Graduate Non- College Graduate O Below 5,000 5,001-10,000 15,000 30 50 E Test the Significance? 35 40 10,001- 15,001- 20,000 O-E 25 10 10 8 (O-E)² (O-E)²/E a. Is there a difference between the salaries of the college and non-college graduates? Use alpha = 0.05

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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3 Salaries of college and non-college graduates were compared. Results are shown below:
Educ
Level Below 5,000 5,001-10,000
College
Graduate
Non-
College
Graduate
O
30
50
E
Test the Significance?
35
40
O-E
10,001- 15,001-
15,000
20,000
25
10
10
8
(O-E)² (O-E)² /E
a. Is there a difference between the salaries of the college and non-college graduates? Use alpha = 0.05
Transcribed Image Text:3 Salaries of college and non-college graduates were compared. Results are shown below: Educ Level Below 5,000 5,001-10,000 College Graduate Non- College Graduate O 30 50 E Test the Significance? 35 40 O-E 10,001- 15,001- 15,000 20,000 25 10 10 8 (O-E)² (O-E)² /E a. Is there a difference between the salaries of the college and non-college graduates? Use alpha = 0.05
1 To find out if the completion or non-completion of a task is related to type of leadership, a researcher collected data from 100 leaders.
What conclusions can be drawn from the data?
Task
Completion
YES
NO
Group Leadership
dEMoctrats Autocrats
25
20
30
25
O
E
O
2 In a survey, it was found out that 60 out of 110 feMales, 90 out of 120 Males favored the use of birth control.
Is there a sex difference in the preference of birth control?
O-E (O-E)² (O-E)²/E
E
O-E (O-E)²
(O-E)² /E
Transcribed Image Text:1 To find out if the completion or non-completion of a task is related to type of leadership, a researcher collected data from 100 leaders. What conclusions can be drawn from the data? Task Completion YES NO Group Leadership dEMoctrats Autocrats 25 20 30 25 O E O 2 In a survey, it was found out that 60 out of 110 feMales, 90 out of 120 Males favored the use of birth control. Is there a sex difference in the preference of birth control? O-E (O-E)² (O-E)²/E E O-E (O-E)² (O-E)² /E
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