A researcher selects a random sample of 138 college students from her local university. For each student, she records if they are full- or part-time and whether they sleep well. She would like to know if there is convincing evidence that school schedule is associated with sleeping. Let a = 0.05. Which of the following contributed the most to the value of the x? statistic? full-time student and sleeps well part-time student and sleeps well O full-time student and does not sleep well The observed and expected counts are displayed in part-time student and does not sleep well the tables. Observed counts: Sleep Well? Yes No Full-Time 28 37 Schedule Part-Time 49 24

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A researcher selects a random sample of 138 college
Which of the following contributed the most to the
students from her local university. For each student,
value of the x? statistic?
she records if they are full- or part-time and whether
full-time student and sleeps well
they sleep well. She would like to know if there is
convincing evidence that school schedule is
associated with sleeping. Let a = 0.05.
part-time student and sleeps well
full-time student and does not sleep well
The observed and expected counts are displayed in
part-time student and does not sleep well
the tables.
Observed counts:
Sleep Well?
Yes
No
Full-Time
28
37
Schedule
Part-Time
49
24
Expected counts:
Transcribed Image Text:A researcher selects a random sample of 138 college Which of the following contributed the most to the students from her local university. For each student, value of the x? statistic? she records if they are full- or part-time and whether full-time student and sleeps well they sleep well. She would like to know if there is convincing evidence that school schedule is associated with sleeping. Let a = 0.05. part-time student and sleeps well full-time student and does not sleep well The observed and expected counts are displayed in part-time student and does not sleep well the tables. Observed counts: Sleep Well? Yes No Full-Time 28 37 Schedule Part-Time 49 24 Expected counts:
The observed and expected counts are displayed in
O part-time student and does not sleep well
the tables.
Observed counts:
Sleep Well?
Yes
No
Full-Time
28
37
Schedule
Part-Time
49
24
Expected counts:
Sleep Well?
Yes
No
Full-Time
36.3
28.7
Schedule
Part-Time
40.7
32.3
Transcribed Image Text:The observed and expected counts are displayed in O part-time student and does not sleep well the tables. Observed counts: Sleep Well? Yes No Full-Time 28 37 Schedule Part-Time 49 24 Expected counts: Sleep Well? Yes No Full-Time 36.3 28.7 Schedule Part-Time 40.7 32.3
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