A random sample of 40 people was asked if they had watched the current episode of a hit television series. The following data represent their responses. yes no no ono no no no yes no no
no no es no no no no no no no no
yes no yes no noyes no no no no
no no no no no no no

Required:
a. Calculate the proportion of viewers in the sample who indicated they watched the current episode.
b. Compute a 99% confidence interval for the proportion of viewers who watched the current episode (Round to three decimal places as needed.)