A study of seat belt users and non-users yielded the randomly selected sample data summarized in the given table. (Figures in bracket are expected frequencies.) Number of cigarettes smoked per day Seat Belt Use 0/day 1-14/day 15-34/day 35 and over/day ТОTAL Wear seatbelts 175(171.53) 20(...) 42(43.94) 6(7.94) 243 Does not wear seatbelts 149(152.47) 17(17.41) 41(39.05 9(...) 216 TOTAL 324 37 83 15 459 State the null hypothesis

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A study of seat belt users and non-users yielded the randomly selected sample data summarized in the given table. (Figures in bracket are expected frequencies.)
Number of cigarettes smoked per day
Seat Belt Use
0/day
1-14/day
15-34/day
35 and over/day
TOTAL
Wear seatbelts
175(171.53)
20...)
42(43.94)
6(7.94)
243
Does not wear seatbelts 149(152.47)
17(17.41)
41(39.05
9(...)
216
TOTAL
324
37
83
15
459
State the null hypothesis
Answers A- B
the amount of smoking is independent of seatbelt use
the amount of smoking is not independent of seatbelt use
ESTONS O MA
Transcribed Image Text:A study of seat belt users and non-users yielded the randomly selected sample data summarized in the given table. (Figures in bracket are expected frequencies.) Number of cigarettes smoked per day Seat Belt Use 0/day 1-14/day 15-34/day 35 and over/day TOTAL Wear seatbelts 175(171.53) 20...) 42(43.94) 6(7.94) 243 Does not wear seatbelts 149(152.47) 17(17.41) 41(39.05 9(...) 216 TOTAL 324 37 83 15 459 State the null hypothesis Answers A- B the amount of smoking is independent of seatbelt use the amount of smoking is not independent of seatbelt use ESTONS O MA
Question 2 v
UNFLAG QUESTION
A study of seat belt users and non-users yielded the randomly selected sample data summarized in the given table. (Figures in bracket are expected frequencies.)
Number of cigarettes smoked per day
Seat Belt Use
O/day
1-14/day
15-34/day
35 and over/day
ТОTAL
Wear seatbelts
175(171.53)
20(...)
42(43.94)
6(7.94)
243
Does not wear seatbelts 149(152.47)
17(17.41)
41(39.05
9(...)
216
37
83
15
459
TOTAL
324
Determine the critical value of the Chi Square distribution at 5%
Answers A - C
A 7.25
B 7.815
C 5.991
10
Previous
VERSION 2M46
2 OF 81 QUESTIONS
Transcribed Image Text:Question 2 v UNFLAG QUESTION A study of seat belt users and non-users yielded the randomly selected sample data summarized in the given table. (Figures in bracket are expected frequencies.) Number of cigarettes smoked per day Seat Belt Use O/day 1-14/day 15-34/day 35 and over/day ТОTAL Wear seatbelts 175(171.53) 20(...) 42(43.94) 6(7.94) 243 Does not wear seatbelts 149(152.47) 17(17.41) 41(39.05 9(...) 216 37 83 15 459 TOTAL 324 Determine the critical value of the Chi Square distribution at 5% Answers A - C A 7.25 B 7.815 C 5.991 10 Previous VERSION 2M46 2 OF 81 QUESTIONS
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