Box XXXXXXXXXXgave data on the weights of rats that were given the drug Thiouracil. The rats were measured at the start of the experiment and at the end of the experiment. The data are given in Table...

Box (1950) gave data on the weights of rats that were given the drug Thiouracil. The rats were measured at the start of the experiment and at the end of the experiment. The data are given in Table 4.4. Give a 99% confidence interval for the difference in weights between the finish and the start. Test the null hypothesis that the population mean weight gain was less than or equal to 50 with α = 0.02.

Table 4.4