In: Statistics and Probability
A researcher conjectured that 80% of people visit their dentist regularly for checkups. A random sample of 500 people were surveyed, of which 375 answered that they did visit regularly.
a) Construct a 95% confidence interval for the population proportion that would visit their dentist regularly for a checkup.
b) Use this confidence interval to construct and test the hypothesis that the true proportion in the population is 80%.
Please answer as soon as possible