CASE STUDY $18\mathrm{.}1$ Fried dough is a popular North American food associated

with outdoor food stands at carnivals, amusement parks, fairs, festivals, and so on$.$

Usually dusted with powdered sugar and drenched in oil, it is not particularly good

for you but it sure is tasty! Jose Sanchez owns a small stall at Boston Commons in

Boston, Massachusetts, where he sells fried dough and soft drinks. Although business

is good, he is apprehensive about the variation in sales for no apparent reason. He

asks a friend to help him make a forecast for fried dough as well as soft drinks. The

accompanying table shows a portion of data on the number of plates of fried dough

and soft drinks that he sold over the last $20$ days.

Data for Case Study $18\mathrm{.}1$ Data on Fried Dough and Soft Drinks

In a report, use the sample information to

Construct the exponentially smoothed series for fried dough and soft drinks

using $=0\mathrm{.}30$ and $=0\mathrm{.}70.$

Calculate MSE and MAD for each series.

Forecast sales of fried dough and soft drinks for day $21$ with the best$-$fittingCASE STUDY $18\mathrm{.}1$ Fried dough is a popular North American food associated with outdoor food

stands at carnivals, amusement parks, fairs, festivals, and so on$.$ Usually dusted with powdered

sugar and drenched in oil, it is not particularly good for you but it sure is tasty! Jose Sanchez

owns a small stall at Boston Commons in Boston, Massachusetts, where he sells fried dough and

soft drinks. Although business is good, he is apprehensive about the variation in sales for no

apparent reason. He asks a friend to help him make a forecast for fried dough as well as soft

drinks. The accompanying table shows a portion of data on the number of plates of fried dough

and soft drinks that he sold over the last $20$ days.

FILE

Fried$\_$Dough

Data for Case Study $18\mathrm{.}1$ Data on Fried Dough and Soft Drinks

In a report, use the sample information to

Construct the exponentially smoothed series for fried dough and soft drinks using $=0\mathrm{.}30$

and $=0\mathrm{.}70.$

Calculate MSE and MAD for each series.

Forecast sales of fried dough and soft drinks for day $21$ with the best$-$fitting series.

series.