Chapter $3$ Forecasting

Week

Patient Arrivals$/$Actuals

Forecast

$1$

$400$

$2,380$

$3$

$411$

a$.$ Prepare a three week moving average forecast for Week $4$

b$.$ If the actual # of patient arrivals in week $4$ is $415,$ what is the forecast error for week $4.$

c$.$ What is the forecast for week $5$ using three week moving average? $($Use week $4$ Actual in Part b$)$

Week

Patient Arrivals$/$Actuals

Forecast

$4$

$400$

$380$

$6,411$

d$.$ Prepare a weighted moving average forecast for Week $7($using $\mathrm{.}50,\mathrm{.}30,\mathrm{.}20)$

e$.$ If the actual # of patient arrivals in week $7$ is $415,$ what is the forecast error for week $7.$

f$.$ What is the forecast for week $8$ using weighted moving average? $($Use week $7$ actual in Part e$).$

Week

Patient Arrivals$/$Actuals

Forecast

$1$

$400$

$380$

$411$

$390$

Calculate Forecast for week $4$ using exponential smoothing factor of $10$