1.1011 Statistical Methods for Public, Nonprofit, and Health Management Student's name: Mailbox number: Homework Class 7 1. Is having children related to satisfaction with family life? To explore this question, you administer a "life satisfaction" test to 2 groups of adults. The 78 subjects without children have a mean life satisfaction score of 11.3 (standard deviation=0.6). The 93 subjects with children have a mean life satisfaction of 10.8 (standard deviation=0.5). At the .05 level, is there a statistically signicant difference in satisfaction between the two groups? *In answering this question, assume that \"life satisfaction\" is an interval-ratio level of measurement. Class 7 Homework Assignment Page 1 of 3 2. In an effort to determine whether attitudes towards premarital sex differ by urban versus rural residence, a sample ofurban residents (N=450) and a sample ofrural residents (N=41?) are asked whether they agree with the statement that premarital sex is "always wrong." In the responses, 157 urban residents agree that premarital sex is "always wrong," and 133 rural residents agree that premarital sex is "always wrong." At the .01 level, are urban residents more likely to agree? Class 7 Homework Assignment Page 2 of 3 3. You are the statistical consultant on a project that examines the relationship between the amount of money that states spend on public schools, and student performance on standardized tests. You draw a sample of 1 0 states, as follows: ANNUAL EXPENDITURE AVERAGE STATE RETfI'EgF PER PU PIL STANDARDIZED thousands of dollars TEST SCORE __ - Georgia South 5 100 New Mexico South 8 105 7 _F___ 1 15 100 -- 1 10 - 1 10 __ 1 15 Your client has asked whether average annual expenditures per pupil are higher in the Northern states. Based on this sample, what would you tell her? Class 7 Homework Assignment Page 3 of 3