The LawnPlus Fertilizer Company distributes fertilizer to various lawn and garden shops. The company must base its quarterly

production schedule on a forecast of how many tons of fertilizer will be demanded from it $.$ ?The company has gathered the following

data for the past three years from its sales records:

Demand for Fertilizer $($ Ton $)$

$105$

$150$

$93$

$121$

$140$

$170$

$105$

$150$

$150$

$170$

$110$

$130$

Year

Quarter

$1$

$2$

$3$

$1$

$2$

$3$

$4$

$5$

$6$

$7$

$8$

$9$

$10$

$11$

$12$

Develop a seasonally adjusted forecast for the demand data for fertilizer. Use a linear trend line model to compute a forecast estimate

for demand in year $4.($ Round seasonal factors to $2$ ?decimal places, e $.$ g $.15\mathrm{.}2$ ?and final