11.12 A drug company is interested in investigating whether thecolor of their packaging has any impact on sales. To test this, theyused five different colors (blue, green, orange, red, and yellow) fortheir packages of an over-the-counter pain reliever, instead of the traditional white package. The following table shows the number ofpackages of each color sold during the first monthPackage colorBlueGreenOrangeRedYellow216Number of310292280296packages soldUsing a 1% significance level, test the null hypothesis that the numberof packages sold of each of these five colors is the same

11.12 From the given information, the null hypothesis states that the number of packages sold of…

Answered: 11.12 A drug company is interested in…

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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. Do patients with gastrointestinal issues experience more psychological distress than the general population? The DASS-21 questionnaire is a validated measure of depression, anxiety, and stress. For the general population, the mean for anxiety is µ = 4.2. Anxiety levels are calculated based on self-reported answers to questions on a scale from 0 through 42, with lower scores indicating lower anxiety. Participants with gastrointestinal issues (specifically inflammatory bowel disease, IBD) completed the DASS-21. Use the data presented below to determine whether having gastrointestinal issues like IBD significantly increases risk for anxiety. Test whether or not the performance of this sample is significantly higher than the normal population using the proper t-test. Here are the data: Anxiety scores: 12, 15, 10, 8, 10, 5, 10, 13, 4, 6 ANALYSES AND UNGRADED OPTIONAL GUIDING QUESTIONS: 1a. Identify the Indep.Variable:__ Dep.Variable:__ Is it the Hypothesis…
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