Homework: Ch9 HW One Question 21' 9.243 Hw Score: seam, 21.22 (Q3 E Sample Condence P . of24 points art2 ot5 . Intervals @ Paints: 0.2 0H People were polled on how many books they read the previous year. Initial survey results indicate that s = 1?.3 books. Complete parts {a} through {d} below. a Click the icon to view a partial table of critical values. {a} How manj.r subjects are needed to estimate the mean number of books read the previous year within six books with 90% condence? This 90% condence level requires 24 subjects. (Round up to the nearest subject.) [b] HOW many subjects are needed to estimate the mean number of DOORS read the previous year within three DOORS With 90% condence? This 90% condence level requires :l subjects. (Round up to the nearest subject.)