You would like to be able to predict students' gradepoint averages based on the number of hours theystudy every week. You randomly select 500 studentsand have them report their GPA and number of hoursthey study per week. What statistical test will allow youto predict GPA based on the number of hours a studentstudies per week? And what is the research question?

Research Question:The primary research question can be articulated as: "Is there a significant…

Answered: You would like to be able to predict…

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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True or False The PEW Researcher center based on a sample of 10,000 recent college graduates says the average amount of money owed in student loans is $31,800. The value of $31,800 is a statistic. A study is observational when the researcher controls the behaviors of their subjects.
{Narrative: Graduate}The National Collegiate Athletic Association (NCAA) requires colleges to report the graduation rates of their athletes. Here are data from a Big Ten university's report: 45 of the 74 athletes admitted in a speci fic year graduated within 6 years. Does the proportion of athletes who graduate di ffer signi ficantly from the all-university proportion, which is .70 ?1. What is your conclusion? Please use words that a non-statistics student would understand, and justify your answer. Assume a significance level of .05
What is the point of statistics? Why do we need it? Why can’t we just look at data by itself?
why is it important for students to know something about statistics as applied to psychology?
The Methods section of a research paper is where the researchers describe the statistical analyses that they employed. True False
If Ted scores in the first quartile on his math test, that means he scored better than most students on the test. True or False
There are many over-the-counter pain relievers. By the end of the semester, you have a tremendous headache and are looking for the most effective pain relief – too much statistics homework!  You conduct a study comparing the two most popular pain relievers and a placebo to see which works best. You use only subjects with headaches and record the amount of time (in minutes) it takes for their headache to go away after they receive medication. What statistical analysis should you perform? State the hypotheses. State the df and critical value. State the test statistic and value. State your conclusion – using the APA format
You collect data on number of hours spent studying, on average, throughout the Fall 2019 semester for all Stonehill students. You have a colleague at the College of the Holy Cross in Worcester, MA who collects the same data at Holy Cross. You want to compare the average number of hours spent studying during the Fall 2019 semester for male students at Stonehill, female students at Stonehill, male students at Holy Cross and female students at Holy Cross. Which statistical test would you use to compare the students at Stonehill and Holy Cross to look for significant differences in study time? a. one sample t test b. two sample t test c. repeated measures t test d. ANOVA
Provide an example of a study, including the variables, level of measurement, and hypotheses, for which a researcher could appropriately choose two different statistics to examine the relations between the same variables. Explain your answer.
The boxplot below shows salaries for CPAS and Actuaries in a town. СРА Actuary 20 30 40 50 60 70 80 90 100 110 Salary (thousands of $) If a person is making the third quartile salary for a CPA, they are making less than % of Actuaries.
what would happen to the mean, median, and mode values that you calculated ,if you added one player to the team whose points per game for the season was 25. just tell me if the mean, median, and mode would go up, down, or stay the same. Give an example of variable for which the mean would not be appropriate to describe the data (that is, tell me a circumstance in which you would not want to use the mean to describe a dataset)
A psychologist wanted to examine whether regular mindfulness practice would have an effect on the anxiety levels of her clients. She randomly assigned her clients into two groups. She asked the first group to meditate every day for 15 minutes for 6 months in addition to their regular counseling sessions. In the second group, she continued her regular counseling sessions without any extra treatment. Since the psychologist does not know how to run the analysis, your task is, by using your statistics skills, to inform her whether the mindfulness practice has made a difference in the lives of her clients and in what sense. To provide her with an answer, I want you to run two different tests: An Independent Samples t-test and a One-Way ANOVA, report their results, and compare the findings of these two analyses.

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