2. A study was conducted to examine the difference between the older and younger adult teacherson perceived life satisfaction. A pilot study was conducted to examine this hypothesis. Ten olderadults (over the age of 50) and ten younger adults (between 20 and 40) were given a life satisfactiontest (known to have high reliability and validity). Scores on the measure range from 0 to 60 with highscores indicative of high life satisfaction, low scores indicative of low life satisfaction. Result of theanalysis is presented below.Older AdultsYounger AdultsMean44.528.1Variance75.3888888972.98888889ObservationsHypothesized Mean Difference1010df18x StatP(X<=x) one-tailCritical one-tailP(X<=x) two-tail4.2575466660.0002368321.7340636070.000473663x Critical two-tail2.100922041. What statistical tool is used?2. What is the null hypothesis in this study?

Answered: Image /qna-images/answer/7c587028-4789-4bf3-9974-554b89783bb3.jpg

Answered: 2. A study was conducted to examine the…

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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A researcher was interested in how the effects of stress were different in people with our without military training. A equal number of participants were recruited that either had no military experience or had completed military experience. All participants were asked to give a speech without preparation while being judged by a panel of experts. Their heart rates were monitored during the speech and an average heart rate was calcuated for each participant. Which statistical test would be best to determine if there is a significant difference between groups? one-sample t-test dependent samples t-test independent samples t-test ANOVA
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