#20 part b only- show full work for psych stats ### Exercise and Psychological Well-beingExercise is known to produce positive psychological effects. Interestingly, not all exercise is equally effective. Research indicates that exercising in a natural environment (e.g., jogging in the woods) produces better psychological outcomes than exercising in urban environments or in homes (Mackay & Neill, 2010). A sports psychologist is interested in testing whether there is a difference between exercise in nature and exercise in the lab concerning post-exercise anxiety levels. The researcher recruits \( n = 7 \) participants who exercise in the lab and on a nature trail. The following data represent the anxiety scores measured after each exercise session. ### Table of Anxiety Scores for Participants| Participant | Anxiety after Exercising in Lab | Anxiety after Exercising in Nature ||-------------|---------------------------------|----------------------------------|| A | 32 | 8 || B | 66 | 68 || C | 52 | 48 || D | 48 | 37 || E | 52 | 44 || F | 48 | 38 || G | 52 | 44 |### Statistical Questionsa. **Independent-Measures Study Analysis** Treat the data as if the scores are from an independent-measures study using two separate samples, each with \( n = 7 \) participants. Compute the pooled variance, the estimated standard error for the mean difference, and the independent-measures t statistic. Using \( \alpha = .05 \), is there a significant difference between the two sets of scores?b. **Repeated-Measures Study Analysis** Assume the data are from a repeated-measures study using the same sample of \( n = 7 \) participants in both treatment conditions. Compute the variance for the sample of difference scores, the estimated standard error for the mean difference, and the repeated-measures t statistic. Using \( \alpha = .05 \), is there a significant difference between the two sets of scores?

In this study, the focus is on investigating the impact of different exercise environments on…

Answered: . Now assume that the data are from a…

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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