3. In a certain research, some astrologists have speculated that people born under certain sun signs are more extroverted than people under other signs. The Eysenck Personality Inventory (EPI) was used to measure extroversion and neuroticism. The following data as follows: Sun Sign Sample Size Extroversion Neuroticism N SD SD 5.25 Water Signs Other Signs Winter Signs Summer Signs 78 12.80 4.63 13.57 199 13.67 5.18 13.43 5.34 82 12.58 5.34 12.97 5.22 53 15.78 4.84 15.45 5.03 3.2 Do the data strongly suggest that those born under winter signs have a lower mean extroversion score than those born under summer signs? Use a level of 0.05 test.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 27PPS
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3. In a certain research, some astrologists have speculated that people born under certain
sun signs are more extroverted than people under other signs. The Eysenck Personality
Inventory (EPI) was used to measure extroversion and neuroticism. The following data
as follows:
Sun Sign
Sample Size
Extroversion
Neuroticism
SD
SD
Water Signs
Other Signs
Winter Signs
Summer Signs
78
12.80
4.63
13.57
5.25
199
13.67
5.18
13.43
5.34
82
12.58
15.78
5.34
12.97
5.22
53
4.84
15.45
5.03
3.2 Do the data strongly suggest that those
born under winter signs have a lower mean
extroversion score than those born under
summer signs? Use a level of 0.05 test.
Transcribed Image Text:3. In a certain research, some astrologists have speculated that people born under certain sun signs are more extroverted than people under other signs. The Eysenck Personality Inventory (EPI) was used to measure extroversion and neuroticism. The following data as follows: Sun Sign Sample Size Extroversion Neuroticism SD SD Water Signs Other Signs Winter Signs Summer Signs 78 12.80 4.63 13.57 5.25 199 13.67 5.18 13.43 5.34 82 12.58 15.78 5.34 12.97 5.22 53 4.84 15.45 5.03 3.2 Do the data strongly suggest that those born under winter signs have a lower mean extroversion score than those born under summer signs? Use a level of 0.05 test.
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