please answer in text form and in proper format answer with must explanation , calculation for each part and steps clearly 3)A physical education director claims by taking a special vitamin, a weight liftercan increase his strength. Eight athletes are selected and given a test of strength,using the standard bench press. After 2 weeks of regular training, supplemented with thevitamin, they are tested again. Test the effectiveness of the vitamin regimen at a = 0.05.Each value in these data represents the maximum number of pounds the athlete canbench-press. Assume that the variable is approximately normally distributed.Athlete12345678Before (X₁)210230182205262253219216After (X2)219236179204270250222 216

Step 1-To test if the vitamin is effectivei.e. Null and alternate hypotheses will…

Answered: 3) A physical education director claims…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.6: The Inverse Trigonometric Functions

Problem 94E

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A manufacturing company produces electric insulators. You define the variable of interest as the strength of the insulators. If the insulators break when in use, a short circuit is likely. To test the strength of the insulators, you carry out destructive testing to determine how much force is required to break the insulators. You measure force by observing how many pounds are applied to the insulator before it breaks. The accompanying data represent the amount of force required to break a sample of 30 insulators. a. Construct a 99% confidence interval for the population mean force.
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