9. PH3200 Activity complete

Go to the GSS web site ( sda.berkeley.edu/GSS website and download the data for the variable AFTERLIF for 2008. This variable asks respondents if they believe in life after death with four possible responses: “Yes, definitely;” “Yes, probably;” “No, probably not;” and “No, definitely not.” Under the analysis tab, type AFTERLIF as a row variable and YEAR(2008) as a selection filter, then run the table. Copy and paste the frequency distribution into your answer below. Use these results to estimate the proportion of people in 2008 who believed in life after death (responses 1 and 2). Proportion of Successes: sample proportion ( ^ p ) who believe in life after death: 1024/1303 = 0.7859 Conduct a test to determine whether a majority of people believe in life after death. 1) Assumptions  Categorical data (trouble sleep yes or no)  Randomization: yes, random samples from GSS  Large enough sample sizes so that there are at least 15 “successes” and at least 15 “failures” in each group . o np 0 = 1303*0.5 = 651.5 o n(1-p 0 ) = 1303* 0.5 = 651.5 2) Hypotheses H 0 : p = 0.5 H 0 : p > 0.5 3) Test Statistic n = 1303 ^ p = 1024 1303 = 0.7859 Test Statistic: z = ^ p − p 0 √ p 0 ( 1 − p 0 ) n