2. You have been promoted to assistant manager at Mountain Theaters and have been given the project of determining which shape option for popcorn (given below) would maximize
profits for the theater. Show your work for determining the volume per price for each shape and
which would be your choice for the best profit option. Use 3.14 = Show your work and
include correct units.

Given z value let x be a normal random variable with standard deviation (d) = 1.65 (i) find the margin of error for a 90 percent confidence interval for mean corresponding to a sample size of 12 (3/100) (ii) interpret the result of question 3( (4/100) /- [cpt115] -5 (ii) with reference to question 3(d)(i), find an approximate 90 percent confidence interval for mean if the 12 sample values of x are as follows: 95 103 107 98 90 110 92 108 90 94 105 100 (7/100) interpret the result of question 3(d)(ii) (iv)