For a sample of 20 student police officers who are drunk, you find the mean number of drinks ...

For a sample of 20 student  police officers who are drunk, you find the mean number of drinks per week to be 35 with a sample standard deviation of 10.1. Test the null hypothesis that your sample came from a population with a mean of 15 against the alternative hypothesis that the population mean is higher than 15. Use alpha .05. a) formally state the hypothesis b) what is the critical value for this test? c) what is the value of the test statistic? d) report and interpret your decision regards to the null hypothesis e) is it necessary to compute a 95% confidence interval yes or no? if yes compute it.