Your Name _____________________________________ SPSS EXERCISE 2 For this SPSS exercise, you will transform some variables, conduct T-tests to examine differences in means for key policy variables, and obtain Chi-Square statistics and Pearson Correlation Coefficients to test statistical association or correlation. For all the problems, assume a significance level ( α ) of 5% or 0.05. 1. What is the average percentage of students who are black for the 577 sample schools? The average in the sample is _____________ %. 2. The average percentage of black students for elementary schools in Chicago is 37%. Based on the given sample, can you conclude that elementary schools in New York City and Chicago have significantly different percentages of students who are black? (t-test) 3. What is the mean percentage of students who are eligible for free lunch? The average in the sample is _____________ %. 4. Do schools in Staten Island have a different average for the percentage of students who are eligible for free lunch compared to schools in the other four boroughs? (t-test)
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