Problem $3-4($Algo$)$

An electrical contractor's records during the last five weeks indicate the number of job requests:

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Predict the number of requests for week $6$ using each of these methods:

a$.$ Naive.

Number of requests

b$.$ A four$-$period moving average. $($Round your answer to $2$ decimal places.$)$

Number of requests

c$.$ Exponential smoothing with $=0\mathrm{.}20.$ Use $26$ for week $2$ forecast. $($Round your intermediate forecast values and final answers to $2$

decimal places.$)$