From the data in Table 2.1, using simple random sampling, take ten different samples of six physicians. For each sample, compute approximate 95% confidence intervals for the average number of household visits per physician. For how many of these calculated 95% confidence intervals is the true population mean X within the boundaries of the intervals? If this number is much higher or lower than expected, how do you explain it? (Start with the first random number in the upper left-hand corner of Table A.l in the Appendix and read down the columns, going no further than row 35.)