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## Explanation & Answer

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In what follows use any of the following tests/procedures: Regression, confidence intervals, onesided t-test, or two-sided t-test. All the procedures should be done with 5% P-value or 95%

confidence interval.

Open Hospital_HW13 data. Test if Hospital 1 has more patients who attempted suicide than

Hospital 3 on average. (Pick the closest answer)

1. What test did you perform? (4 points)

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a. Regression

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b. Confidence Interval

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c. Two sided t-test

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d. One sided t-test

2. What is the P-value/margin of error? (4 points)

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a. #DIV/0!

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b. 0.048098

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c. 0.096197

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d. None of these

3. What is the Statistical interpretation? (4 points)

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a. The P-value is smaller than 5% thus the result is inconclusive.

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b. The P-value is smaller than 5% thus we are confident to confirm the claim.

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c. The P-value is too large to have a conclusive answer.

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d. Average of data is inconsistent with the claim.

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e. None of the above.

4. What is the conclusion? (4 points)

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a. Statistics confirms that Hospital 1 has more patients than Hospital 3.

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b. We can claim Hospital 1 has more patients who have made suicide attempt than

Hospital 3.

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c. We cannot claim that Hospital 1 has more patients who have made suicide attempt

than Hospital 3.

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d. None of these.

5. What test did you perform? (4 points)

•

a. Regression

•

b. Two sided t-test

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c. One sided t-test

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d. Confidence Interval

6. What is the P-value/margin of error? (4 points)

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a. 1.856912

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b. 9.688328

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c. 170.3271

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d. None of these

7. What is the Statistical interpretation? (4 points)

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a. The P-value is larger than 5% thus the result is conclusive.

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b. The P-value is too large to have a conclusive answer.

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c. Average of data is inconsistent with the claim.

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d. The prediction interval for the true average number of Hospital 3 patients who

suffered car accident injuries is [168.471, 172.184].

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e. None of the above.

8. What is the conclusion? (4 points)

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a. Statistics confirms that Hospital 3 has many patients who have had a car accident.

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b. We are confident to say that Hospital 3 has more than 150 patients who have

suffered car accident injuries on average.

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c. We cannot claim that Hospital 3 has more than 150 patients who have suffered car

accident injuries on average.

•...