A vacation resort rents SCUBA equipment to certified divers.The
resort charges an up-front fee of $25 and another fee of
$12.50 an hour. What is the dependent variable?
time
resort location
diver certification
fee amount
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Which of the following equations are linear?
4y=8
y2=6x3+8
3y=6x+5y2
y-x=8x2
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You are thinking about opening up a Starbucks in your area but what
to know if it is a good investment. How much moneydo Starbucks
actually make in a year? You collect data to, to help estimate Annual
Net Sales, in thousands, of dollars to know how much money you will
be making.
You collect data on 27 stores to help make your decision.
,x1 = Rent in Thousand per month
x2 = Amount spent on Inventory in Thousand per month x3 =
Amount spent on Advertising in Thousand per monthx4 = Sales
in Thousand per month
x5= How many Competitors stores are in the Area
Find the estimated regression equation which can be used toestimate
Annual Net Sales when using these 5 variables are predictor
variables.
See Attached Excel for Data.
Starbuck Sales data.xlsx
Annual Net Sales = -49.0449 + 0.9911(Rent) + 0.9823(Inventory) + 0.9782(Advertising) +
27.6181(Sales) - 2.9766(Competitor)
Annual Net Sales = -49.0449 + 15.1571(Rent) + 0.1744(Inventory) + 12.1779(Advertising) +
14.2972(Sales) - 2.9766(Competitor)
Annual Net Sales = 44.4256 + 5.5406(Rent) + 0.0979(Inventory) + 3.7165(Advertising) +
2.9543(Sales) - 2.5614(Competitor)
Annual Net Sales = -1.1039+ 2.736(Rent) + 1.9204(Inventory) + 3.2767(Advertising) +
4.8384(Sales) - 1.1620(Competitor)
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You decided to join a fantasy Baseball league and you thinkthe best
way to pick your players is to look at their Batting Averages.
You want to use data from the previous season to help predictBatting
Averages to know which players to pick for the upcoming season. You
want to use Runs Score, Doubles,
, Triples, Home Runs and Strike Outs to determine if there is a
significant linear relationship for Batting Averages.
You collect data to, to help estimate Batting Average, to seewhich
players you should choose. You collect data on 45 players to help
make your decision.
x1 = Runs Score/Times at Bat
x2 = Doubles/Times at Bat x3
= Triples/Times at Bat
x4 = Home Runs/Times at Bat
x5= Strike Outs/Times at Bat
Interpret the slope(s) of the significant predictors for BattingAverage
(if there are any).
See Attached Excel for Data.
Baseball data.xlsx
When you hold Double, Triples, Home Runs and Strike Outs constant, as Runs Score
increases by 1, your Batting Average will increase by .447/Times at Bat.
When you hold Runs Score, Triples, Home Runs and Strike Outs constant, as Doubles
increases by 1, your Batting Average will increase by .991/Times at Bat.
When you hold Runs Score, Doubles, Triples, and Home Runs constant, as Strike Outs
increase by 1, your Batting Average will decrease by .285/Times at Bat.
When you hold Double, Triples, Home Runs and Strike Outs constant, as Runs Score
increases by 1, your Batting Average will increase by .109/Times at Bat.
When you hold Runs Score, Triples, Home Runs and Strike Outs constant, as Doubles
increases by 1, your Batting Average will increase by .313/Times at Bat.
When you hold Runs Score, Doubles, Triples, and Home Runs constant, as Strike Outs
increase by 1, your Batting Average will decrease by .052/Times at Bat.
There are no significant predictors.
resort charges an up-front fee of $25 and another fee of
$12.50 an hour. What is the dependent variable?
time
resort location
diver certification
fee amount
View Feedback
Which of the following equations are linear?
4y=8
y2=6x3+8
3y=6x+5y2
y-x=8x2
View Feedback
You are thinking about opening up a Starbucks in your area but what
to know if it is a good investment. How much moneydo Starbucks
actually make in a year? You collect data to, to help estimate Annual
Net Sales, in thousands, of dollars to know how much money you will
be making.
You collect data on 27 stores to help make your decision.
,x1 = Rent in Thousand per month
x2 = Amount spent on Inventory in Thousand per month x3 =
Amount spent on Advertising in Thousand per monthx4 = Sales
in Thousand per month
x5= How many Competitors stores are in the Area
Find the estimated regression equation which can be used toestimate
Annual Net Sales when using these 5 variables are predictor
variables.
See Attached Excel for Data.
Starbuck Sales data.xlsx
Annual Net Sales = -49.0449 + 0.9911(Rent) + 0.9823(Inventory) + 0.9782(Advertising) +
27.6181(Sales) - 2.9766(Competitor)
Annual Net Sales = -49.0449 + 15.1571(Rent) + 0.1744(Inventory) + 12.1779(Advertising) +
14.2972(Sales) - 2.9766(Competitor)
Annual Net Sales = 44.4256 + 5.5406(Rent) + 0.0979(Inventory) + 3.7165(Advertising) +
2.9543(Sales) - 2.5614(Competitor)
Annual Net Sales = -1.1039+ 2.736(Rent) + 1.9204(Inventory) + 3.2767(Advertising) +
4.8384(Sales) - 1.1620(Competitor)
View Feedback
You decided to join a fantasy Baseball league and you thinkthe best
way to pick your players is to look at their Batting Averages.
You want to use data from the previous season to help predictBatting
Averages to know which players to pick for the upcoming season. You
want to use Runs Score, Doubles,
, Triples, Home Runs and Strike Outs to determine if there is a
significant linear relationship for Batting Averages.
You collect data to, to help estimate Batting Average, to seewhich
players you should choose. You collect data on 45 players to help
make your decision.
x1 = Runs Score/Times at Bat
x2 = Doubles/Times at Bat x3
= Triples/Times at Bat
x4 = Home Runs/Times at Bat
x5= Strike Outs/Times at Bat
Interpret the slope(s) of the significant predictors for BattingAverage
(if there are any).
See Attached Excel for Data.
Baseball data.xlsx
When you hold Double, Triples, Home Runs and Strike Outs constant, as Runs Score
increases by 1, your Batting Average will increase by .447/Times at Bat.
When you hold Runs Score, Triples, Home Runs and Strike Outs constant, as Doubles
increases by 1, your Batting Average will increase by .991/Times at Bat.
When you hold Runs Score, Doubles, Triples, and Home Runs constant, as Strike Outs
increase by 1, your Batting Average will decrease by .285/Times at Bat.
When you hold Double, Triples, Home Runs and Strike Outs constant, as Runs Score
increases by 1, your Batting Average will increase by .109/Times at Bat.
When you hold Runs Score, Triples, Home Runs and Strike Outs constant, as Doubles
increases by 1, your Batting Average will increase by .313/Times at Bat.
When you hold Runs Score, Doubles, Triples, and Home Runs constant, as Strike Outs
increase by 1, your Batting Average will decrease by .052/Times at Bat.
There are no significant predictors.
