A. Construct the 95% confidence interval estimate of the mean pain score for pat

Question

A. Construct the 95% confidence interval estimate of the mean pain score for patients getting the magnet treatment What is the confidence interval estimate of the population mean u?
B. Construct the 95% confidence interval estimate of the mean pain score for patients given the sham treatment What is the confidence interval estimate of the population mean u?
C. Compare the results, does the treatment with magnets appear to be effective? In a study designed to test the effectiveness of magnets for treating back pain, 35 patients were (extreme pain). After given the magnet treatments, the 35 patients had pain scores with a mean standard deviation of 2.6. Complete parts (a) thirough (c) below Click here to view a t distribution table Click here to view page 1 of the standard normal distribution table. a Construct the 95% confidence interval estimate of the mean pain score for patients given them What is the confidence interval estimate of the population mean ? Round to one decimal place as needed) b. Construct the 95% confidence interval estimate of the rmean pain score for patients given the sha what is the confidence interval estimate of the population mean ? Round to one decimal place as needed.) c. Compare the results. Does the treatment with magnets appear to be effective? O A. Since the confidence intervals overlap, it appears that the magnet treatments are no more eff Click to select your answer(s) O Type here to search F3 i5 16 esc 2

Explanation / Answer

95% confidence interval estimate of the mean pain score for patients getting the magnet treatment

t critical = 2.032

Xbar +/- ( t critical * s ÷ sqrt(n) )

6 +/- ( 2.032*(2.3÷sqrt(35)))

5.2 < mu < 6.8

95% confidence interval estimate of the mean pain score for patients given the sham treatment

Xbar +/- ( tcritical * s ÷ sqrt (n))

5.8 +/- ( 2.032 * ( 2.6 ÷ sqrt(35)))

4.9 < mu < 6.7

Both the intervals are close enough

( for c part options are not provided )

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