You are testing the claim that smiling, rather than remaining neutral, during a court proceding will lead toa different punishment from the judge.A sample of 34 people who smiled during their hearing and 34 people who kept neutral facial expressionsduring their hearing is taken and each judgment was rated for leniency. Those who smiled (population 1)had a mean leniency rating of 4.9 with a standard deviation of 1.7, while those who did not smile(population 2) had an average leniency rating of 4.1 and standard deviation 1.5. Test the claim using a 10%level of significance.What are the correct hypotheses?Ho: Select an answerv ?V Select an answerH₂: Select an answer ?V Select an answervBased on the hypotheses, find the following:Test Statistic =p-value =The correct decision is to Select an answerThe correct summary would be: Select an answerdifference in leniency when smiling over being neutral when in trouble.that there is aLeFrance, M. and Hecht, M.A., "Why Smiles Generate Leniency", Personality and Social Psychology Bulletin.1995; 21:207-204. abstract

We have given with usual notation as follows: For population 1: n1=34 x¯1=4.9 s1=1.7 For day…

Answered: You are testing the claim that smiling,…

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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Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. The students in group 1 were asked to spend 5 minutes thinking about what it would mean to be a professor, while the students in group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming. The 200 students in group 1 had a mean score of 24.9 with a standard deviation of 4.3, while the 200 students in group 2 had a mean score of 17.2 with a standard deviation of 3.4. Complete parts (a) and (b) below. (a) Determine the 95% confidence interval for the difference in scores, µ, - H2. Interpret the interval. The lower bound is The upper bound is. (Round to three decimal places as needed.)
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