Perform a hypothesis test on the following mean. Use the t-test with the critical value approach. Do not forget to identify which is the claim. Use the lower case u for the mean, mu. A large software company gives job applicants a test of programming ability and the mean for that test has been 160 in the past. Twenty-five job applicants are randomly selected from a large university and they produce a mean score of 183 and standard deviation of 12. Use a 0.05 significance level to test whether the mean score for students from this university is greater than 160. Which is the claim, null or alternative hypothesis?
Construct a confidence interval for the population proportion p.
Of 380 randomly selected medical students, 30 said that they planned to work in a rural community. Find a 95% confidence interval for the true proportion of all medical students who plan to work in a rural community.
What is the Z Critical Value?
What is the value of p?
What is the Margin of Error (E)?
What is the Confidence Interval?