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MATH302 I005 Fall – APEI Quiz Submissions - Week 8
Knowledge Check Homework Questions with 100%
accurate solutions 2026 latest update
Name _______ (username:
______ ) Attempt 2
Attempt Score: - 100 %
Submission View
Your quiz has been submitted successfully.
Q#1 point
A company manager believes that a person's ability to be a leader is directly
correlated to their zodiac sign. He never selects someone to chair a committee
without first evaluating their zodiac sign. An irate employee sets out to prove her
manager wrong. She claims that if zodiac sign truly makes a difference in
leadership, then a random sample of 210 CEO's in our country would reveal a
difference in zodiac sign distribution. She finds the following zodiac signs for her
random sample of 210 CEO's:
Births Signs
25 Aries
13 Taurus
17 Gemini
21 Cancer
16 Leo
18 Virgo
15 Libra
16 Scorpio
20 Sagittarius
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11 Capricorn
23 Aquarius
15 Pisces
Can she conclude that zodiac sign makes a difference in whether or not a person
makes a good leader?
Enter the p-value - round to 4 decimal places. Make sure you put the 0 in front of the
decimal.
p-value =
___ ___
Answer:
0.4798
Hide Q # 1 feedback
The Expected Count is all the same value. 210*(1/12) = 17.5
Expected
Births Signs
Count
25 Aries 17.5
13 Taurus 17.5
17 Gemini 17.5
21 Cancer 17.5
16 Leo 17.5
18 Virgo 17.5
15 Libra 17.5
16 Scorpio 17.5
20 Sagittariu 17.5
s
11 Capricor 17.5
n
23 Aquarius 17.5
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15 Pisces 17.5
Use Excel to find the p-value
=CHISQ.TEST(Highlight Observed, Highlight Expected)
Q#2 point
An urban economist is curious if the distribution in where Oregon residents live is
different today than it was in 1990. She observes that today there are approximately
3,109 thousand residents in NW Oregon, 902 thousand residents in SW Oregon, 244
thousand in Central Oregon, and 102 thousand in Eastern Oregon. She knows that in
1990 the breakdown was as follows: 72.7% NW Oregon, 20.7% SW Oregon, 4.8%
Central Oregon, and 2.8% Eastern Oregon.
Can she conclude that the distribution in residence is different today at a 0.05 level
of significance?
Enter the test statistic - round to 4 decimal places.
Test statistic=___
___
Answer: 10.1714
Hide Q # 2 feedback
NW SW Central Eastern
Oregon Oregon Oregon Oregon
Observe 3109 902 244 102
d
Counts
Expecte 4357*.72 4357*.207 4357*.048 4357*.028
d 7 = = =
Counts = 901.899 209.136 121.996
3167.53
9
FOR MORE EXAMS
EMAIL:
EMAIL:
MATH302 I005 Fall – APEI Quiz Submissions - Week 8
Knowledge Check Homework Questions with 100%
accurate solutions 2026 latest update
Name _______ (username:
______ ) Attempt 2
Attempt Score: - 100 %
Submission View
Your quiz has been submitted successfully.
Q#1 point
A company manager believes that a person's ability to be a leader is directly
correlated to their zodiac sign. He never selects someone to chair a committee
without first evaluating their zodiac sign. An irate employee sets out to prove her
manager wrong. She claims that if zodiac sign truly makes a difference in
leadership, then a random sample of 210 CEO's in our country would reveal a
difference in zodiac sign distribution. She finds the following zodiac signs for her
random sample of 210 CEO's:
Births Signs
25 Aries
13 Taurus
17 Gemini
21 Cancer
16 Leo
18 Virgo
15 Libra
16 Scorpio
20 Sagittarius
FOR MORE EXAMS
EMAIL:
,FOR MORE EXAMS
EMAIL:
11 Capricorn
23 Aquarius
15 Pisces
Can she conclude that zodiac sign makes a difference in whether or not a person
makes a good leader?
Enter the p-value - round to 4 decimal places. Make sure you put the 0 in front of the
decimal.
p-value =
___ ___
Answer:
0.4798
Hide Q # 1 feedback
The Expected Count is all the same value. 210*(1/12) = 17.5
Expected
Births Signs
Count
25 Aries 17.5
13 Taurus 17.5
17 Gemini 17.5
21 Cancer 17.5
16 Leo 17.5
18 Virgo 17.5
15 Libra 17.5
16 Scorpio 17.5
20 Sagittariu 17.5
s
11 Capricor 17.5
n
23 Aquarius 17.5
FOR MORE EXAMS
EMAIL:
, FOR MORE EXAMS
EMAIL:
15 Pisces 17.5
Use Excel to find the p-value
=CHISQ.TEST(Highlight Observed, Highlight Expected)
Q#2 point
An urban economist is curious if the distribution in where Oregon residents live is
different today than it was in 1990. She observes that today there are approximately
3,109 thousand residents in NW Oregon, 902 thousand residents in SW Oregon, 244
thousand in Central Oregon, and 102 thousand in Eastern Oregon. She knows that in
1990 the breakdown was as follows: 72.7% NW Oregon, 20.7% SW Oregon, 4.8%
Central Oregon, and 2.8% Eastern Oregon.
Can she conclude that the distribution in residence is different today at a 0.05 level
of significance?
Enter the test statistic - round to 4 decimal places.
Test statistic=___
___
Answer: 10.1714
Hide Q # 2 feedback
NW SW Central Eastern
Oregon Oregon Oregon Oregon
Observe 3109 902 244 102
d
Counts
Expecte 4357*.72 4357*.207 4357*.048 4357*.028
d 7 = = =
Counts = 901.899 209.136 121.996
3167.53
9
FOR MORE EXAMS
EMAIL:
