Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. Patients in a hospital are classified as surgical or medical. A record is kept of the number of times patients require nursing service during the night and whether or not these patients are on Medicare. The data are presented here: The evidence Medicare Yes P-value = i No Patient Category Surgical Medical 52 46 36 Test the hypothesis (using a = 0.40) that calls by surgical-medical patients are independent of whether the patients are receiving Medicare. Find to 2 decimal places the P-value for this test. sufficient to claim that surgical-medical patients and Medicare status are dependent. 43

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Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise.

Patients in a hospital are classified as surgical or medical. A record is kept of the number of times patients require nursing service during the night and whether or not these patients are on Medicare. The data are presented here:

| Patient Category | Surgical | Medical |
|------------------|----------|---------|
| Medicare Yes     | 46       | 52      |
| Medicare No      | 36       | 43      |

Test the hypothesis (using \( \alpha = 0.40 \)) that calls by surgical-medical patients are independent of whether the patients are receiving Medicare. Find to 2 decimal places the P-value for this test.

The evidence [dropdown menu] sufficient to claim that surgical-medical patients and Medicare status are dependent.

P-value = [text box]
Transcribed Image Text:Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. Patients in a hospital are classified as surgical or medical. A record is kept of the number of times patients require nursing service during the night and whether or not these patients are on Medicare. The data are presented here: | Patient Category | Surgical | Medical | |------------------|----------|---------| | Medicare Yes | 46 | 52 | | Medicare No | 36 | 43 | Test the hypothesis (using \( \alpha = 0.40 \)) that calls by surgical-medical patients are independent of whether the patients are receiving Medicare. Find to 2 decimal places the P-value for this test. The evidence [dropdown menu] sufficient to claim that surgical-medical patients and Medicare status are dependent. P-value = [text box]
Expert Solution
Step 1: Hypotheses

Check whether the calls by surgical-medical patients are independent of whether the patients are receiving Medicare.

The hypotheses are given below:


Null hypothesis:

H subscript 0: The calls by surgical-medical patients are independent of whether the patients are receiving Medicare.


Alternative hypothesis:

H subscript 1: The calls by surgical-medical patients are not independent of whether the patients are receiving Medicare.


Rejection Rule:

If p-value less or equal than alpha (=0.40), then reject the null hypothesis.

The test statistic and the p-value is obtained by using Excel.


EXCEL (PH STAT in Add-Ins) procedure:

Step 1: Choose PH Stat > Multiple-Sample Tests > Chi-Square Test.

Step 2: In Data, enter the values of Level of Significance, Number of Rows as 2, and Number of Columns as 2.

Step 3: In Output Options, Select the appropriate Title.

Step 4: Click OK.

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