Answered: Fatty acids that are present in fish…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Fatty acids that are present in fish oil may be useful for treating some psychiatric disorders. An article described a randomized experiment done by a medical researcher in which 13 bipolar patients received fish oil daily, while 15 other patients received a placebo daily. After 4 months, 7 of the 13 patients who received fish oil had responded favorably, but only 2 of the 15 placebo patients had done so. (Round your answers to four decimal places.)

(a)

Calculate the difference between the proportions showing favorable response in the two groups. (Use

p_{fish oil} − p_placebo.)

Calculate a standard error for this difference.

If you believe that a confidence interval should be calculated using this method, calculate the 95% confidence interval. (If it is not appropriate, enter DNE into both blanks. Round your answers to three decimal places.)

__to___

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