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Statistical Analysis Of Pre-Test And Post-Test Performance In Introductory Statistics: A Pilot Study - Document preview page 1

Statistical Analysis Of Pre-Test And Post-Test Performance In Introductory Statistics: A Pilot Study - Page 1

Document preview content for Statistical Analysis Of Pre-Test And Post-Test Performance In Introductory Statistics: A Pilot Study

Statistical Analysis Of Pre-Test And Post-Test Performance In Introductory Statistics: A Pilot Study

This Homework Answers document examines student performance trends using statistical methods. Get it today!

William Scott
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Statistical Analysis Of Pre-Test And Post-Test Performance In Introductory Statistics: A Pilot Study - Page 1 preview imageStatistical Analysis of Pre-Test and Post-Test Performance inIntroductory Statistics: A Pilot StudyAt theUniversity of Mytholopoloisthe head of the statistics departmentwants to find out whether or not 7 basic topics are being adequately learned inintroductory statistics courses.A test is written that has 7 questions, one questionaddressing each of the main topics under consideration.These topics are:1-Measurementscales2-Measuresof central tendency3-Standarddeviation4-Normalcurve and empirical rule5-t-tests6-ANOVA7-Correlationand regressionThis brief test is going to be administered to all students registered in theintroductory statistics course at the beginning of the first session and the end of thelast session.This is a pre-test/post-test design.But before this full scale data
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Statistical Analysis Of Pre-Test And Post-Test Performance In Introductory Statistics: A Pilot Study - Page 2 preview image
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Statistical Analysis Of Pre-Test And Post-Test Performance In Introductory Statistics: A Pilot Study - Page 3 preview imagecollection effort begins the department is going to test this little instrument.Eightstudents are selected to use as a test group.The following is a table of the studentscores in the pre-test condition and the post-test condition.This final project is asking you to consider 4 different statistical tests.Thefirst is what the department head is looking for, the second is an extension of thatwith a further breakdown of information, the third is looking for a relationshipbetween two different variables and the fourth is asking what test you would use topredict astudent’sscore.StudentSexPre-testPost-testHours perweekstudyingstatisticsMatildaF4615FranklinM2518LilyF4713PaulM3611LouiseF557GoldaF4612
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Statistical Analysis Of Pre-Test And Post-Test Performance In Introductory Statistics: A Pilot Study - Page 4 preview imageDuncanM2514PhilipM679Answer the followingquestions about this problem.Preliminary information about the dataQuestion1.What is the head of the statistics department trying to find out?The head of department is trying to find out whether or not 7basic topics are being adequately learned in introductory statisticscourses.2.What are the variables of interest?The variable of interest are1.pre test scores,2.post test scores, and3.Number of hours studies weekly.3.What is the measurement scale of the each of the variables ofinterest?The measurement scale of pre test scores is ratio.
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Statistical Analysis Of Pre-Test And Post-Test Performance In Introductory Statistics: A Pilot Study - Page 5 preview imageThe measurement scale of post test scores is ratio.The measurement scale of number of hours studies weeklyis ratio.4.What is the mean of the pre-test scores?Mean = ( 4 + 2 + 4 + 3 + 5 + 4 + 2 + 6) / 8 = 30/8 = 3.755.What is the median of the post-test scores?Median is 6.6.In both thepre and post test conditions, considering these as a singlesample, what is the mode?(There should be 16 values considered.)There are two modes: 5 and 6.7.What is the range of the hours studied values?The range is 18–7 = 11.8.Can you calculate a mean for the sex of the students involved in thispilot study?Explain your answer.No, we cannot.
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Statistical Analysis Of Pre-Test And Post-Test Performance In Introductory Statistics: A Pilot Study - Page 6 preview image9.What is the standard deviation ofthe pre-test scores?Please showall your work. You don't have to do the standard deviation of the post-test scores.222SD =126SD =3.751.2991.38XXn−−=XX24162441639525416246362X=12610. Looking at just the pre-test scores, using the empirical rule, is thedistribution of these scores normal?SinceSD3.751.32.45 to 5.05X=
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