A section of a random number table is reproduced here:

a. Starting with the first random number in the upper left-hand corner of this table and reading down the columns, select a sample of 6 of the 25 physicians listed in Table 2.1.

b. Estimate the mean number X of household visits made by physicians in the population, and construct a 90% confidence interval for A".
Estimate the total number X of household visits made by the physicians in the population, and construct a 95% confidence interval for X. How does this confidence interval compare with the one given in the Illustrative Example in Section 3.5?

d. Estimate with virtual certainty the proportion of physicians in the population making two or more household visits per year.

06 97 37 77 08 00 39 81 14 08 58 1 22 17 24 19 75 73 12 79 69 59 32 53 54 03 48 44