Statistics

Solution Library


Calculate Bivariate Correlation And Regression For Data Given In Sav File

Question In the data set, there are 35 variables and 2248 participants. The file is about Norwegian veterans, who have participated in international military operations (intops). The data contains information about PTS symptoms, how they perceived their time in active duty and to which degree they ... Read More

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Calculation Of Regression And Making Scatter Plot

Question The data for Consumer Price Index Y, (2000 = 100) and the money supply X ($billions) for the US for the years 1959 – 2011 are presented in file CPIM2.wf1. a. Draw a scatter plot for the pairs of variables below and comment on their relationship: 1. Y vs X 2. ln Y vs ln X 3. ln Y v ... Read More

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Calculation Of Regression And Interpret The Results

Question The data on after-tax corporate profits (X) and net corporate dividend payments (Y) ($ billions) of private corporations in the US for the quarterly period of 2007:1 to 2011:3 are presented in file Tax.wf1. a. Regress dividend payments (Y) on after-tax corporate profits (X) to find out if ... Read More

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Calculation Of Regression And Results Interpretation

Question Data on child mortality (CM), female literacy rate (FLR), per capita GNP (PGNP), and total fertility rate (TFR) for a group of 64 countries are given in file CM.wf1. a. What is the expected relationship between CM and each of the other variables? b. Regress CM on FLR and present the usua ... Read More

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Calculation Of Variance And Estimate Standard Errors

Question Consider the investment behavior of two large corporations, General Electric and Westinghouse. These firms compete against each other and produce many of the same types of products. We might wonder if they have similar investment strategies. Investment data for 20 years for these two corpo ... Read More

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Calculation Of Regression For Estimation Of Sales

Question Data for corporate profits (P) and sales (S) for the manufacturing sector for the period 1970-2005 are stored in file sales.wf1. a. Find least-squares estimates of β1 and β2 in the model P = β1 + β2S + e Report and comment on the estimated equation. b. Draw a histo ... Read More

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SPSS Analysis For 3 Case Studies

Question Read the three case studies below and choose the appropriate statistical procedure. Using the Final Data Set, run the appropriate correlation or regressions procedure, analyze the data, and report the results. Please be sure to include the following elements in your Results: The assump ... Read More

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SPSS Analysis For Average Recall Of Exact Phrases For Men And For Women

Question Use the Christy.SAV data set for these problems. 1. Suppose the researcher wants to ask whether or not the average recall of exact phrases (VERBAL) for men and for women (GENDER) are different. a. What test should the researcher run (be specific)? b. Run the test. Report your test stati ... Read More

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Hypothesis Testing Of GPA Of College Students

Question The average GPA among all college students is estimated to be 2.60. There is reason to believe that students who binge drink have lower GPAs than students that don’t. In a sample of 121 Rutgers-Newark college students identified by their peers as problem drinkers, you find that the m ... Read More

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Hypothesis Testing For Reduced Absenteeism Among Students

Question A prior study of high school students in New Jersey found that among all students, the mean number of days absent during the school year was 4.7. In 2000, the school decided to implement an absentee program in order to reduce the number of student absences. Afterward, school officials rand ... Read More

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Hypothesis Testing Of Youth Spending More Time With Friends

Question A common finding in criminology is that youths who spend a lot of free time in the company of their friends and in the absence of adult supervision are more likely to smoke cigarettes, drink alcohol, and use marijuana. Researchers estimate that the average youth uses these substances at a ... Read More

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Hypothesis Testing Of City Type And Violent Crime Rates

Question The following contingency table provides a joint distribution of city type and violent crime rate. Conduct a Chi-Square test of independence to determine whether city type influences violent crime rates. Use an of .05. Be sure to include all five steps of your hypothesis test. Vio ... Read More

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