A psychology student was conducting research on self-esteem. The researcher made note of the number of positive statements the participants made about themselves. After 12 weeks of attending group counseling meetings, the researcher records the number of positive statements the participants made about themselves. Use the following data to answer the questions.| Participant | Before | After ||-------------|--------|-------|| A | 7 | 10 || B | 6 | 13 || C | 9 | 12 || D | 5 | 8 |1. What is the appropriate significance test for this type of data?2. Calculate standard error, the degrees of freedom (df), and the obtained t-value.3. What is the critical t-value?4. Is there a significant difference (alpha = .05) between the two groups if we are testing to see if the therapy leads to higher self-esteem?

The data is as follows: ParticipantBeforeAfterA710B613C912D58

Answered: A psychology student was conducting…

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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In a study examining the relation of math ability to the belief that math ability was innate, the belief was considered the predictor variable. The researcher hopes to find a correlation between the participants’ math ability and their belief that math ability is innate. The scores for the three participants are shown below. The group that believed that math is NOT innate scored 66, 70, 50. The group that believed that math IS innate scored 7, 4,10. what are the mean and SD for each group?
In a city with three high schools, all the ninth graders took a Standardized Test, with these results: Number of ninth graders High School Mean score on test Glenwood 77 264 Central City Lincoln High 91 303 70 170 The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was 79.3. Of course, that is incorrect. What is the mean score for all ninth graders in the city? Round to one decimal place. mean of all ninth grader's scores =
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