The tourist center is open on weekends (Friday, Saturday, and Sunday). The owner-manager hopes to improve scheduling of part-time employees by determining seasonal relatives for each of these days. Data on recent traffic at the center have been tabulated and are shown in the following table:
Week
1 2 3 4 5 6
Friday 149 154 152 150 159 163
Saturday 250 255 260 268 273 276
Sunday 166 162 171 173 176 183
a.) Develop seasonal relatives for the shop
b.) Use a naïve trend approach to predict sales transactions for the following week.