Asked by csdyscorcino

# In a study designed to test the effectiveness of magnets for...

In a study designed to test the effectiveness of magnets for treating back pain, 35 patients were given a treatment with magnets and also a sham treatment without magnets. Pain was measured using a scale from 0 (no pain) to 100 (extreme pain). After given the magnet treatments, the 35 patients had pain scores with a mean of 7.0 and a standard deviation of 2.3. After being given the sham treatments, the 35 patients had pain scores with a mean of 5.2 and a standard deviation of 2.6. Complete parts (a) through (c) below.

**a.** Construct the 90% confidence interval estimate of the mean pain score for patients given the magnet treatment.

**b.** Construct the 95% confidence interval estimate of the mean pain score for patients given the sham treatment.

First calculate E, rounding to three decimal places.

Answered by FUPPY

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