An entomologist is investigating which of two fumigants, f1 or f2, is more effective in controlling parasities on tobacco plants. to compare the fumigants, nine fields of differing soil characteristics, drainage, and amount of wind shield were planted with tobacco. each field was then divided into two plots of equal area. fumigant f1 was randomly assigned to one plot in each field and f2 to the other plot. fifty plants were randomly selected from each field, 25 from each plot, and the number of parasites were counted. the data are in the following table. fumigant f1: 77, 40, 11, 31, 28, 50, 53, 26, 33fumigant f2: 76, 38, 10, 29, 27, 48, 51, 24, 32a. what are the populations of interest? b. do the data provide sufficient evidence to indicate a difference in the mean level of parasites for the two fumigants? use a=.10. report the p-value for the experimental data. c. estimate the size of the difference in the mean number of parasites between the two fumigants using 90% confidence interval.