Year Quarter Value CMA
2019 1 29.8
2019 2 36.1
2019 3 43.3
2019 4 39.6
2020 1 50.7
2020 2 52.1
2020 3 62.5
2020 4 58
2021 1 60.9
2021 2 69.2
2021 3 71.9
2021 4 71.9
Using the data, calculate centred moving averages (CMAs) for the necessary time periods and fill them into the table below. Round all CMAs to two decimal places.
Using the rounded CMA values from a. above, develop seasonal indices for each of the terms. Round the final indices to four decimal places. Do not round during these calculations, only at the end.
What is the index for the first quarter?
I1=I1=
What is the index for the second quarter?
I2=I2=
What is the index for the third quarter?
I3=I3=
What is the index for the fourth quarter?
I4=I4=
