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Question $16$

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The degree of management involvement in short$-$range forecasts is:

Question $16$Select one:

a$.$

none.

b$.$

low.

c$.$

moderate.

d$.$

high.

e$.$

total.

Question $17$

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The forecasting method which uses anonymous questionnaires to achieve a consensus forecast is:

Question $17$Select one:

a$.$

sales force opinions.

b$.$

consumer surveys.

c$.$

the Delphi method.

d$.$

time series analysis.

e$.$

executive opinions.

Question $18$

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The mean absolute deviation is used to:

Question $18$Select one:

a$.$

estimate the trend line.

b$.$

eliminate forecast errors.

c$.$

measure forecast accuracy.

d$.$

seasonally adjust the forecast.

e$.$

compute periodic forecast errors.

Question $19$

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The owner of Darkest Tans Unlimited in a local mall is forecasting this month's $($October$\text{'}$s$)$ demand for the one new tanning booth based on the following historical data:

Picture

What is the monthly rate of change $($slope$)$ of the least squares trend line for these data?

Question $19$Select one:

a$.$

$320$

b$.$

$102$

c$.$

$8$

d$.$

$-\mathrm{.}4$

e$.$

$-8$

Question $20$

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