Weekly sales of the Weber food processor for the past 10 weeks have been as follows (Chapter 15): Week Sales Week Sales 1 980 6 990 2 1040 7 1030 3 1120 8 1260 4 1050 9 1240 5 960 10 1100 a. Determine, on the basis of minimizing the mean square error, whether a three- or four-period simple moving average model gives a better forecast for this problem. b. For each model, forecast sales for Week 11.

mk./km: lm

step-by-step explanation:

,mlmlm

; mk

lk

you ignore the remainder, therefore the answer is y = x+2

step-by-step explanation:

you have to divide the denominator by the numerator. you can use synthetic division or long division.

[-5] .     1 .     7 .     11

x + 2 + 1/x+5

(a) {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …}

(b) $59 398

step-by-step explanation:

(a) the annual sequence of profits

aₙ = a₁rⁿ⁻¹

the model for the sequence of profits is {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …} .

(b) profit after 15 yr

  a₁ = $ 30 000

  r = 1.05

a₁₅ = 30 000 × 1.05¹⁴

a₁₅ = 30 000 × 1.979 93

a₁₅ = $59 398

the profit in year 15 will be $59 398.