w surgical procedure has been developed to remove cataracts which involves a maj
ID: 2925891 • Letter: W
Question
w surgical procedure has been developed to remove cataracts which involves a major hospital (5 pts.) 5. A ne smaller incision. This more expensive new procedure will be implemented at a only if there is evidence that the average recovery time is less than the current recovery of seven days. recovery times will be decreased size of the incision are not being considered, only the recovery time time A random sample of patients will receive the new procedure, and the resulting used to test the relevant hypothesis. Note that the benefits of the (1 pt.) a) State the null and alternative hypotheses (1 pt.) b) In context, explain what the Type l error is (1 pt.) c) In context, explain what the Type II error is (1 pt.) d) Which one is worse for the hospital. Type I error or Type lI error? Why? errorExplanation / Answer
a) Null hypothesis = The recovery time for the new surgical procedure for removing cataracts is the same as the current recovery time.
Alternative hypothesis = The recovery time for the new surgical procedure for removing cataracts is less than the current recovery time.
b) Type 1 error are false positives. It involves the rejection of null hypothesis when it is actually true. In this context it would mean that the new surgical procedure is falsely claimed to take less recovery time than the current process.
c) Type 2 error are false negatives. it occurs when we do not reject the null hypothesis that is false. In this context it would occur if we accepted that the new surgical procedure takes the same recovery time as the current process, but in reality the new procedure took less time.
d) For hospitals i feel the type 1 error is worse. As the patient has paid more money and still not got the results he expected. It can result in negative image for the hostpital and the patient can demand for refunds.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.