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##### Stats Data File 5 Problem

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Question;Data File 5;Show all work;Problem 1);Steven collected data from 20 college students on their;emotional responses to classical music.;Students listened to two 30-second segments from ?The Collection from;the Best of Classical Music.? After;listening to a segment, the students rated it on a scale from 1 to 10, with 1;indicating that it ?made them very sad? to 10 indicating that it ?made them;very happy.? Steve computes the total scores from each student and created a;variable called ?hapsad.? Steve then;conducts a one-sample t-test on the data, knowing that there is an established;mean for the publication of others that have taken this test of 6. The following is the scores;5.0 5.0;10.0 3.0;13.0 13.0;7.0 5.0;5.0 15.0;14.0 18.0;8.0 12.0;10.0 7.0;3.0 15.0;4.0 3.0;Conduct;a one-sample t-test. What is the t-test;score? What is the mean? Was the test significant? If it was significant at what P-value level;was it significant?What;is your null and alternative hypothesis? Given the results did you reject or;fail to reject the null and why? (Use instructions on page 437 of;your textbook, under Hypothesis Tests with the t Distribution to conduct SPSS;or Excel analysis).Problem 2)Billie wishes to test the hypothesis that overweight individuals;tend to eat faster than normal-weight individuals. To test this hypothesis, she has two;assistants sit in a McDonald?s restaurant and identify individuals who order;the Big Mac special for lunch. The Big;Mackers as they become known are then classified by the assistants as;overweight, normal weight, or neither overweight nor normal weight. The assistants identify 10 overweight and 10;normal weight Big Mackers. The assistants;record the amount of time it takes them to eight the Big Mac special.1.0 585.01.0 540.01.0 660.01.0 571.01.0 584.01.0 653.01.0 574.01.0 569.01.0 619.01.0 535.02.0 697.02.0 782.02.0 587.02.0 675.02.0 635.02.0 672.02.0 606.02.0 789.02.0 806.0;600.0;Compute;an independent-samples t-test on these data.;Report the t-value and the p values.;Where the results significant?;(Do the same thing you did for the t-test above, only this type when you;go to compare means, click on independent samples t-test. When you enter group variable into grouping;variable area, it will ask you to define the variables. Click define groups and place the number 1;into 1 and the number 2 into 2).What;is the difference between the mean of the two groups? What is the difference is standard deviation?What;is the null and alternative hypothesis?;Do the data results lead you to reject or fail to reject the null;hypothesis? What;do the results tell you?Problem 3)Lilly collects data on a sample of 40 high school students;to evaluate whether the proportion of female high school students who take;advanced math courses in high school varies depending upon whether they have;been raised primarily by their father or by both their mother and their;father. Two variables are found below in;the data file: math (0 = no advanced math and 1 = some advanced math) and;Parent (1= primarily father and 2 = father and mother).;Conduct;a crosstabs analysis to examine the proportion of female high school students;who take advanced math courses is different for different levels of the parent;variable.What;percent female students took advanced math classWhat;percent of female students did not take advanced math class when females were;raised by just their father?What;are the Chi-square results? What are the;expected and the observed results that were found? Are they results of the Chi-Square;significant? What do the results mean? What;were your null and alternative hypotheses?;Did the results lead you to reject or fail to reject the null and;why? Problem 4)This problem will introduce the learner into a technique;called Analysis of Variance. For this;course we will only conduct a simple One-Way ANOVA and touch briefly on the;important elements of this technique.;The One-Way ANOVA is an extension of the independent ?t test that can;only look at two independent sample means.;We can use the One-Way ANOVA to look at three or more independent sample;means. Use the following data to conduct;a One-Way ANOVA:Scores Group1 12 13 12 23 24 24 35 36 3Notice the group (grouping) variable, which is the;independent variable or factor is made up of three different groups. The scores are the dependent variable. Use the instructions for conduction an ANOVA on page 438 of;the text for SPSS or Excel.;What;is the F-score, Are the results significant, and if so, at what level;(P-value)?If;the results are significant to the following;Click analyze, then click Compare Means, and then select one-way ANOVA;like you did previously. Now click Post;Hoc. In this area check Tukey. If there is a significant result, we really;do not know where it is. Is it between;group 1 and 2, 1 and 3, or 2 and 3? Post;hoc tests let us isolate where the level of significance was. So if the results come back significant;conduct the post hoc test as I mentioned above and explain where the results;were significant.What;do the results obtained from the test mean?

Paper#62185 | Written in 18-Jul-2015

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