An electrical contractor's records during the last five weeks indicate the following number of job requests: Predict the number of requests for week $6$ using each of these methods: a$.$ Naive. Number of requests for week $6$ b$.$ Four$-$week moving average. $($Round the final answer to $2$ decimal places.$)$ Number of requests for week $6$ c$.$ Exponential smoothing with $\backslash$alpha $=0\mathrm{.}30.($Round the intermediate calculations and the final answers to $2$ decimal places.$)$