A group of students were surveyed as to whether or not they had to complete chores at home at least once a week and whether they had a curfew. Results are summarized in the contingency table below. Test to see if chores at home is dependent having a curfew. Test at the 3% level and round expected values to one decimal place.
A group of students were surveyed as to whether or not they had to complete chores at home at least once a week and whether they had a curfew. Results are summarized in the contingency table below. Test to see if chores at home is dependent having a curfew. Test at the 3% level and round expected values to one decimal place.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 50E: Flexible Work Hours In a recent survey, people were asked whether they would prefer to work flexible...
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Transcribed Image Text:Enter the critical values, along with the significance level and degrees of freedom xla df)
graph. (Graph is for illustration only. No need to shade.)
below the
X²- Distribution
0.12
0.1
0.08
0.06
0.04
0.02
X?,
Test Statistic x =
(Round to three decimal places.)
P-value =
(Round to four decimal places.)
Decision: Select an answer v
Conclusion:
There Select an answer v significant evidence to conclude that Select an answer v and
Select an answer v are Select an answer v
Probability
61
29
SII
IZI
127
133
Transcribed Image Text:Chores and Curfew:
A group of students were surveyed as to whether or not they had to complete
chores at home at least once a week and whether they had a curfew. Results are
summarized in the contingency table below. Test to see if chores at home is
dependent having a curfew. Test at the 3% level and round expected values to one
decimal place.
No
Curfew
Curfew
No Curfew
Curfew
Row
Curfew
(Expected
Value)
(Observed)
(Observed) (Expected Total
Value)
Chores
15
17
32
No
6.
13
22
Chores
Column
24
30
54
Total
H: Hypotheses
H,: Chores
and Curfew
o are independent
Ha: Chores
o and Curfew
f are dependent
Original Claim: H:
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