The pandemic in the past two years deeply impacted people’s life.
The pandemic in the past two years deeply impacted people’s life.
The pandemic in the past two years deeply impacted people’s life. A Covid-19 at-home self-tester is an excellent solution to reduce the risk of exposure effectively. A pharmaceutical company just developed new kinds of Covid self-tester. Answer the question below:
(a). Suppose the company used a computer simulation to determine the accuracy of their product. In a collection of 100 citizens, the tester revealed 67 correct results. Find a 93% confidence interval for this case.
(b). If one of their self-testers can detect the virus in 85% of cases. Suppose the company wants to use this tester in a new simulation for a sample of 500 citizens. How many correct detections (x) the tester needs to make to get a hypothesis test with alpha = 0.05 that support that alternative hypothesis? Present all possible values of x (using intervals