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Problem $3-3($Algo$)$

A dry cleaner uses exponential smoothing to forecast equipment usage at its main plant. August usage was forecasted to be $48$ percent of capacity; actual usage was $52$ percent of capacity. A smoothing constant of $\mathrm{.}20$ is used.

a$.$ Prepare a forecast for September.

Note: Round your final answer to $2$ decimal places.

b$.$ Assuming actual September usage of $55$ percent, prepare a forecast for October usage.

Note: Round your answer to $2$ decimal places. Problem $3-8($Algo$)$

Air travel on Mountain Airlines for the past $18$ weeks was:

Use regression to develop a forecast for the expected number of passengers for the next three weeks.

Note: Round your answers to two decimal points.