Help! I can\'t figure out what my n-value is. The sample mean (X bar) is 3.5 and

Question

Help! I can't figure out what my n-value is. The sample mean (X bar) is 3.5 and the standard error (se) is 2.9. But I can't do the calculation without n, and I'm not sure what that is.

Suppose that a hospital is trying to reduce the number of medical errors made by residents. They implement a new schedule such that all residents can sleep for 6-8 hours at the same time each day for 6 weeks, before the schedule changes again. Over a full year (52 weeks), the hospital records the number of medical errors made by residents each week. The average number of medical errors per week is 3.5 with a standard deviation of 2.9.

a) Calculate a 95% confidence interval for the average number of medical errors made each week by residents

b) The national average medical errors per week (adjusting for hospital size) is 4.2. What type of hypothesis test can be used to test the hypothesis that the average number of errors per week at this hospital is different from this national average?

c) Implement the test in (b) at the two-sided 0.05 level – you may use either the critical value method or the p-value method.

Explanation / Answer

here as observations has been made for a year for each week therefore n=52

please revert for further explanation and if require help for these subparts,

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.