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

Click here for the Excel Data File

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

a$.$ Naive.

Number of requests

b$.$ A four$-$period moving average.

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

Number of requests

c$.$ Exponential smoothing with $a=0\mathrm{.}30.$ Use $20$ for week $2$ forecast.

Note: Round your intermediate calculations and final answers to $2$ decimal places. b$.$ A four$-$period moving average.

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

Number of requests

c$.$ Exponential smoothing with $a=0\mathrm{.}30.$ Use $20$ for week $2$ forecast.

Note: Round your intermediate calculations and final answers to $2$ decimal places.