Compute a three-period moving average forecast given demand for shopping carts for the last five periods. (Round all your answers to two decimal points.) Period Demand 1 58 2 54 3 60 4 53 5 63

Computation of a Three-Period Moving Average Forecast

Period  Demand   3-period moving average

1                58

2               54

3               60          57.33

4               53          55.67

5              63           58.67

Explanation:

a) Data and Calculations:

Period  Demand   3-period moving average

1                58

2               54

3               60          57.33 (58 + 54 + 60)/3

4               53          55.67 (54 + 60 + 53)/3

5              63           58.67 (60 + 53 + 63)/3

b) The three-period moving average is computed by summing the demand for periods 1, 2, and 3 and dividing it by 3.  The result becomes the moving average for period 3.  This process is repeated by eliminating the first one and adding the next number until the end.

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"we first find value of tax in dollars.

the difference between the two prices   is: 23. 54 - 22 = 1.54

therefore the sales tax in dollars is 1.54

the tax % will be   (amount of tax / original cost price ) × 100

(1.54 / 22) × 100  → (0.07) × 100 =   7

so the tax rate is 7%

we can double check the answer.

7 % of 22   → (7/100) × 22 → 0.07 × 22 = 1.54

22 + 1.54 = 23.54"