If you want to sell your cupcakes for $2 per dozen, you can make a profit of $160. If raise the cupcake price by $1, you can make a profit of $216. If you raise the cupcake price by $2 (which makes them $4 per dozen) you can
make $256 profit. What is the maximum profit you can make? What should you charge for your cupcakes?

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)