People were polled on how many books they read the previous year. Initial survey results indicate that sequals16.2 books. Complete parts (a) through (d) below. LOADING... Click the icon to view a partial table of critical values. Question content area bottom Part 1 (a) How many subjects are needed to estimate the mean number of books read the previous year within four books with 90% confidence? This 90 % confidence level requires enter your response here subjects. (Round up to the nearest subject.)
