Question

All Cashoume Attempt Questions 15-20 refer to the following scenario. It has been brought to the attention of the administration of the Royal Victoria Hospital that patients who are scheduled to undergo corrective heart surgery are experiencing dangerous levels of ariety prior to the procedure. The head psychiatrist at the hospital has suggested a specialized counting program to help these patients with their pre-op andety. To test the effectiveness of the program, an anciety test is administered to a select number of randomly selected patients who are scheduled for corrective heart surgery. The same patients are then put through a series of counseling sessions as part of the psychiatrist's program. Once the patients have completed the counselling program, they are re-tested for anxiety A hypothesis test was conducted to determine if the psychiatrist's counselling program was Successful to help reduce pre-op anxiety amongst corrective heart surgery patients. The test was conducted using a 80% confidence level Question 15 (1 point) Identify the alternative hypothesis for this test.

Answer 1

Ans.

Same number of patients who are scheduled for corrective heart surgery and then put through a series of counselling sessions as part of psychiatrist's program.

Here n₁ = n₂

Hence here we can use paired t test.

Hypothesis -

If the psychiatrist's program was successful to help reduce pre-op anxiety amongst corrective heart patients.

Hence, Alternative Hypothesis -

UD > 0