With this database, you will:
Identify and list categorical and continuous variables.
Calculate frequencies and percentages for all of the categorical variables, and means, and standard deviations for the continuous variables.
Run a one-sample z test of proportions for one categorical variable. Here is an example in terms of wording: “Is the proportion of English speaking patients greater than 50%?” Using .05 level of significant test the appropriate hypotheses.
Write the null and alternate hypotheses
What is the proportion of English speaking patients
What is the standard error and z statistics
Find critical z and p value. Is the p value significant? Conclusion?
Run an independent samples t-test to compare two groups of people (specified by a dichotomous variable) on one continuous variable. Using .05 level of significant test the appropriate hypotheses. In order to run this test statistics you have to re-arrange your data.
Write the null and alternate hypotheses.
What is the calculated mean for each group?
What is the confidence interval for each group?
What is the critical t value?
Is the p value significant? Conclusion?
