Question

A corporation monitors time spent by office workers browsing the web on their computers instead of working. The computer records of a random sample of 101 workers showed that 9 of them spent at least 30 minutes per day browsing. Construct a 90% confidence interval for the proportion of workers who spend at least 30 minutes per day browsing. Do the results support the claim that over 15% of the workers do this

Answer 1

90% confidence interval for the proportion of workers who spend at least 30 minutes per day browsing doesn't not include p = 0.15.

So Our claim that over 15% of the workers do this is not true.