$41.22 Stressed out, Part I. A study that surveyed a random sample of otherwise healthy high school studentsfound that they are more likely to get muscle cramps when they are stressed. The study also noted thatstudents drink more coffee and sleep less when they are stressed.(a) What type of study is this?(b) Can this study be used to conclude a causal relationship between increased stress and muscle cramps?(c) State possible confounding variables that might explain the observed relationship between increasedstress and muscle cramps.000600 F4%5FSA6MacBook AirF6tv&7CF7▶11*8SF8AG(9F90F10

In this question, we are given a scenario and asked about the type of study and some questions based…

Answered: 1.22 Stressed out, Part I. A study that…

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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Q1: Placebo effect of exercise In a high-profile research study, Crum and Langer (2007) performed an experiment to test whether the relationship between physical exercise and health is impacted by one's mindset: in other words, if there is any "placebo effect" of exercise. A sample of 84 randomly selected hotel workers in the United States were placed either into a treatment group (n=44) or control group (n=40) depending on which hotel they worked at. The treatment group was given information demonstrating how their work is good physical exercise, while the control group was not given this information. They measured the body mass index (BMI) for each worker before the experiment and again four weeks after the experiment. a. Are the treatment group and control group independent of each other, and if so why? b. Now consider the treatment group alone: are the measurements of BMI taken before and after the experiment independent of each other, and if so why? c. What is the most appropriate…
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