QUESTION 17You are interested in investigating the efficacy of a stressor and design an experiment measuring stress levels before and afterperforming the new stressor. You recruit 12 people to participate in your study and bring the same 12 participants in for twoseparate sessions. During one visit you measure their stress levels after a nonstressful task. During the other visit you measure theirstress levels after participating in the new stressor. Here is the raw data:PairNumber123489101112Nonstressful StressScore234434334435New stressorStress Score313321353424Use the t-test handout printout provided to calculate the t-statistic. What is the mean difference (I.e., sum of differencesdivided by N)? Show your work. Round to the nearest hundredth (two decimal points!!).

Given datan=12The raw data isNonstress full stress score New stressor test…

Answered: You are interested in investigating 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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Investigation 3.2: Valence Differences Between R&B and Rap Genres (Paired)A music fan claims that R&B songs tend to have a more positive tone on average than do Rapsongs. The individual collected two independent random samples from the population of SpotifySongs. Fifteen R&B songs and another fifteen Rap songs were collected and their Valence wasrecorded. The music fan believed that pairing the song by their Danceability may provideadditional information. Danceability describes how suitable a track is for dancing based on acombination of musical elements including tempo, rhythm stability, beat strength, and overallregularity. A value of 0.0 is least danceable and 1 is most danceable. Thus, the individual pairedthe R&B song with the lowest danceability with the Rap song with the lowest danceability,followed by the second and second, third and third. She continued this process until the R&Bsong with the highest danceability was paired with the Rap song with the…
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