Expert Solutions

1. (TCO 3) Using the following information regarding actual sales for Sam’s Ski Supplies, calculate the regression (trend) line:
Sales for Sam’s Ski Supplies ($000s)

Month First Year Second Year
January

380

400

February

340

360

March

320

330

April

280

290

May

265

270

June

230

235

July

220

230

August

200

205

September

210

220

October

250

270

November

400

450

December

450

502

2. (TCO 3) Using the following information regarding actual sales for Sam’s Ski Supplies, project sales for March of Year 3 using simple linear regression:
Sales for Sam’s Ski Supplies ($000s)

Month First Year Second Year
January

380

400

February

340

360

March

320

330

April

280

290

May

265

270

June

230

235

July

220

230

August

200

205

September

210

220

October

250

270

November

400

450

December

450

502

     
 

3

301.7308

3. (TCO 3) Using the following information regarding actual sales for Seafood City, calculate the seasonal ratio for Saturday of Week 3:
Sales for Seafood City ($)

Day Week 1 Week 2
Monday

1,700

1,800

Tuesday

1,900

2,000

Wednesday

2,100

2,100

Thursday

2,300

2,200

Friday

4,200

4,300

Saturday

4,400

4,600

Sunday

2,100

2,200

4. (TCO 3) Using the following information regarding actual sales for Paradise Pools, calculate the seasonal forecast of sales for April of Year 3:
Sales for Paradise Pools ($000s)

Month First Year Second Year
January

84

84

February

80

82

March

88

98

April

100

120

May

150

160

June

200

210

July

240

250

August

220

215

September

180

195

October

160

165

November

120

130

December

92

100