A tire dealership has sold an average of 1000 radial tires e

A tire dealership has sold an average of 1,000 radial tires each year. In the past two years, tire sales were as follows:

Season

Year 1 Demand

Year 2 Demand

Fall

200

250

Winter

350

300

Spring

150

165

Summer

300

285

Calculate the seasonal index for each quarter.

Fall = 0.85, Winter = 1.25, Spring = 0.58, Summer = 1.12

Fall = 0.99, Winter = 1.19, Spring = 0.59, Summer = 1.17

Fall = 0.95, Winter = 1.35, Spring = 0.68, Summer = 1.22

Fall = 0.80, Winter = 1.20, Spring = 0.53, Summer = 1.07

Season

Year 1 Demand

Year 2 Demand

Fall

200

250

Winter

350

300

Spring

150

165

Summer

300

285

Seanson Index

Fall = 0.9

Winter = 1.3

Spring = 0.63

Summer = 1.17