You wish to determine the impact expressive writing has on days spent in the hospital forelderly adults. However, it is difficult to estimate the population average of days spent in thehospital. Thus, we recruit 14 elderly adults and randomly assigned half to either writeexpressively about their most traumatic life event or to write about their plans for that day-both groups write 20-minute essays four days in a row and six months later are asked howmany days they have spent in the hospital.Expressive writing condition: 2, 5, 1, 4, 4, 2, 3Control condition: 8, 8, 5, 2, 7, 5, 7Which statistical test would you select:Ho:H₁:Enter the data above into and JAMOVI and use the correct statistical procedure to test thenull hypothesis - answer the following questions:What is the mean difference between the two samples?What is the standard error of the mean?What is the appropriate 95% CI? [What is the d-effect size?What is the t-observed?}Based on the p-value (a = .05) should you reject the Ho (yes/no)?

Given information: Expressive Control 2 8 5 8 1 5 4 2 4 7 2 5 3 7

Answered: You wish to determine the impact…

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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Inspired by the example about how background music influences choice of entrée at a restaurant, a statistics student decided to investigate other ways to influence a person's behavior. Using 60 volunteers, she randomly assigned 20 volunteers to get a "red" survey, 20 volunteers to get a “blue” survey, and 20 volunteers to get a control survey. The first three questions on each survey were the same, but the fourth and fifth questions were different. For example, the fourth question on the "red" survey was "When you think of the color red, what do you think about?" On the blue survey, the question replaced red with blue. On the control survey, the last two questions were not about color. As a reward, each volunteer was allowed to choose a chocolate candy in a red wrapper or a chocolate candy in a blue wrapper. The table shows the result of the experiment. The statistics student will use a chi-square test for homogeneity to analyze her findings. Color of candy Red Red 13 Blue 7 Total 20…

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