Reference no: EM132372882
1. Compute the standard error (OM) for each of the fallowing sample sizes, assuming a population mean of 100 and a standard deviation of 20:
a. 45
b 100
c. 4500
2.Rural friendship and the General Social Survey:
Earlier, we consider data from the GSS on numbers of close friends people reported having. The mean for this variable is 7.44, with a standard deviation of 10.98. Let's say that you decide to use the GSS data to test whether people who live in rural areas have different mean number of friends that does the overall GSS sample. Again, treat the overall GSS sample as the entire population of interest. Let's say that you select 40 people living in rural areas and fiend that they have an average 3.9 friends.
a. What is the independent variable in this study? is this variable nominal, ordinal, or scale?
b.What is the dependent variable in this study? is this variable nominal, ordinal or scale?
c.What is the null hypothesis for this study?
d.What is the research hypothesis for this study?
e. Would we compare the sample data to a distribution of scores or to a distribution of means? Explain.