MATH 110-Introduction to Statistics Module 8 Exam

MATH 110-Introduction to Statistics Module 8 Exam MATH 110-Introduction to Statistics Module 8 Exam Suppose we have independent random samples of size n1 = 604 and n2 = 490. The proportions of success in the two samples are p1= .43 and p2 = .51. Find the 95% confidence interval for the difference in the two population proportions. In certain hospital, nurses are required to constantly make rounds to check in on all of the patients. The nursing supervisor would like to know if there is a difference between the number of rounds completed per shift by the nurses on the day shift compared to the nurses on the night shift. So, the nursing supervisor checks the records of 70 day shift nurses and finds that they complete an average (a mean) of 30 rounds per shift with a standard deviation of 4.6 rounds per shift. The nursing supervisor also checks the records of 84 night shift nurses and finds that they complete an average (a mean) of 25 rounds per shift with a standard deviation of 5.7 rounds per shift