Question

# The following data represent the number of sweatshirts sold for each of the past six days...

The following data represent the number of sweatshirts sold for each of the past six days for a department store.

Day

Sales

1

7

2

12

3

8

4

4

5

9

6

14

Using an exponential smoothing with trend adjustment technique with alpha equal to 0.3 and beta equal to​ 0.6, what is the sales forecast for Day​ 7? Round to the final answer to one decimal place.

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