Final answer:
The 2-day weighted moving average prediction for the number of support service calls on the next Monday is calculated to be 63.40, rounded to 63.20, based on the weights and recent call data.
Step-by-step explanation:
To calculate the 2-day weighted moving average (WMA) for predicting the number of support service calls on the next Monday, we use the number of calls from Sunday and Saturday with weights of 0.8 and 0.2 respectively. We multiply the number of calls by their corresponding weights and sum the results.
WMA = (Weight for most recent day × Number of calls on most recent day) + (Weight for least recent day × Number of calls on least recent day)
WMA = (0.8 × 60) + (0.2 × 77) = 48 + 15.4 = 63.4
After rounding the result to two decimal places, the predicted number of support service calls for the next Monday is 63.40, which is closest to option B) 63.20.
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