1. consider the monthly payment formula M = Pr(1 + r)^n/ (1 + r)^n - 7. what is the name of the formula you get if you solved for P? 2. what about if you solve for n? what special function do you need to use when solving for n?

3. does the monthly payment formula take compound interest into account?

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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)