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We want to compare the mean of the hospital stay by sex at this particular Pennsylvania...

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Question

Statistics

We want to compare the mean of the hospital stay by sex at thisparticular Pennsylvania hospital. Let’s assume that the data arenormally distributed and we are assuming that the SD for sexes areequal.    So, is there a difference in the meanhospital stay in Pennsylvania hospital bygender?    (Please include SPSS outputhere)

State the null and alternativehypotheses.   

What is your test statistics and why?  (nocalculation needed)

What were your test statistics results? What is yourconclusion?

Id

Dur_stay

Age

Sex

Temp

WBC

Antibio

Bact_cul

Service

1

5

30

2

99

8

2

2

1

2

10

73

2

98

5

2

1

1

3

6

40

2

99

12

2

2

2

4

11

47

2

98.2

4

2

2

2

5

5

25

2

98.5

11

2

2

2

6

14

82

1

96.8

6

1

2

2

7

30

60

1

99.5

8

1

1

1

8

11

56

2

98.6

7

2

2

1

9

17

43

2

98

7

2

2

1

10

3

50

1

98

12

2

1

2

11

9

59

2

97.6

7

2

1

1

12

3

4

1

97.8

3

2

2

2

13

8

22

2

99.5

11

1

2

2

14

8

33

2

98.4

14

1

1

2

15

5

20

2

98.4

11

2

1

2

16

5

32

1

99

9

2

2

2

17

7

36

1

99.2

6

1

2

2

18

4

69

1

98

6

2

2

2

19

3

47

1

97

5

1

2

1

20

7

22

1

98.2

6

2

2

2

21

9

11

1

98.2

10

2

2

2

22

11

19

1

98.6

14

1

2

2

23

11

67

2

97.6

4

2

2

1

24

9

43

2

98.6

5

2

2

2

25

4

41

2

98

5

2

2

1

Please note: the table below might not be needed;however, these are my calculations for Mean and SD forsexes.

Status

n

(sample size)

Mean

(Duration of Days in hospital)

Standard Deviations (s)

Male

11

8.73

7.913

Female

14

8.50

3.481

Answer & Explanation Solved by verified expert
3.7 Ratings (678 Votes)
H0 Null Hypothesis HA Alternative Hypothesis where Sample 1 refers to hospital stay by males and Sample 2refers to hospital stay by females2 Sample t testREASON Population SD is not provided The Sample Size is small 30Test    See Answer
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