Consider the following time series data: Using the nave method (most recent value) as the forecast for the next week, compute the following measures of

Consider the following time series data:

Using the naïve method (most recent value) as the forecast for the next week, compute the following measures of forecast accuracy:
a. Mean absolute error
b. Mean squared error
c. Mean absolute percentage error
d. What is the forecast for week 7?

Week 23 4 5 6 Valu18 13 6 1 7 14