n₁ = n₂A small amount of the trace element selenium, from 50 to 200 micrograms (ug) per day,is considered essential to good health. Suppose that independent random samples of30 adults were selected from two regions of the United States, and a day'sintake of selenium, from both liquids and solids, was recorded for each person. Themean and standard deviation of the selenium daily intakes for the 30 adults from region24.3 µg, respectively. The corresponding statistics for17.6 mg.140.9 µg and $₁=si1 were ₁167.1 µg and $₁ =1the 30 adults from region 2 were ₂===a. Find a 95% confidence interval for the difference in the mean selenium intake forthe two regions. Interpret the interval.b. Suppose that you wish to estimate the difference in the mean daily intake betweenthe two regions, correct to within 5 µg, with probability 0.90. If you plan to selectan equal number of adults from the two regions (thatis, if µ1should n₁ and n₂ be?M₂), how large=

Answered: Image /qna-images/answer/6136e038-c943-47cc-9bef-1b1e6a728ef8.jpg

Answered: A small amount of the trace element…

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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