please answer question B!!

1. This problem relates to the model of the cost of packaging: The conclusion drawn from (1) that costs per ounce for larger packages are less holds for the data given at the end of this problem, but this is a relatively crude result. Equation (2) cannot be checked, because we cannot compute derivatives, only differences. Moreover, the rule on doubling the size of a package cannot usually be checked, since manufacturers tend to package 30 ARGUMENTS FROM SCALE products in odd sizes. We want a more flexible form of the doubling rule, and so we shall derive a finite difference analog of (2). (a) Let w1w3w2c2c3 Why is this analogous to the statement that r is a decreasing function of w ? (b) The following data was collected at random in a supermarket in 1972. Test the result given in (a). The samples in each group came from the same store at the same time and were of the same brand. The packages within a group appeared similar except for b) The following data was collected at random in a supermarket in 1972. Test the result given in (a). The samples in each group car bra me the mc pri for ide he Jw