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Question
Submitted by shahimermaid on Tue, 2012-03-06 05:30
due on Sat, 2012-03-10 05:28
answered 1 time(s)
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Use the table “Food and...

Use the table “Food and Beverage Sales for Paul’s Pizzeria” to answer the questions below.

Food and Beverage Sales for Paul’s Pizzeria Restaurant

($000s)

Month

First Year

Second Year

January

55

60

February

53

54

March

53

56

April

63

44

May

64

44

June

54

34

July

33

36

August

35

37

September

25

28

October

30

30

November

35

38

December

54

52

Part (a) Calculate the regression line and forecast sales for March of Year 3.

Part (b) Calculate the seasonal forecast of sales for March of Year 3.

Part (c) Which forecast do you think is most accurate and why?

Answer
Submitted by shahimermaid on Tue, 2012-03-06 05:31
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xxxx (a) Calculate the xxxxxxxxxx xxxx and xxxxxxxx xxxxx xxx xxxxx of xxxx 3.

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Food xxx Beverage xxxxx xxx xxxx’x Pizzeria Restaurant

($000s)

Month

First xxxx

xxxxxx xxxx

January

xx

xx

xxxx

xxxxxxxx

xx

xx

xxxx

xxxxx

xx

56

54.5

April

63

xx

xxxx

May

64

44

xx

xxxx

xx

xx

xx

July

33

xx

xxxx

xxxxxx

xx

37

xx

September

xx

xx

26.5

xxxxxxx

30

xx

xx

xxxxxxxx

xx

xx

36.5

December

54

xx

xx

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

xxxxxxxxxx xxxx

xxxxx (X)

x= (X-mean X)

xxx

Sales (Y)

xx (Y-mean xx

y^2

xx

x

xxxx

xxxxx

57.5

xx

xxx

xxxxx

2

-4.5

xxxxx

xxxx

9

81

xxxxx

x

xxxx

12.25

xxxx

10

xxx

xxx

x

xxxx

xxxx

53.5

x

xx

xxxxx

5

-1.5

xxxx

54

xxx

xxxxx

xxxxxx

6

-0.5

0.25

44

xxxx

xxxx

xxxx

x

xxx

0.25

34.5

xxx

100

xx

x

1.5

2.25

xx

xxxx

xxxxx

xxxxxx

x

xxx

6.25

26.5

-18

xxx

-45

10

xxx

xxxxx

30

xxxxx

210.25

xxxxxx

11

xxx

xxxxx

36.5

-8

xx

-36

xx

xxx

xxxxx

53

xxx

72.25

xxxxx

Total

78

x

143

533.5

xxxx

xxxxxxx

-286.25

X xxxx x 78/12 x 6.5

x mean x 533.5/12 =44.5

xxxxx xxx x ( 12 x -286.25 -78 x 533.5)

 

 

x

xxxxxx

x

xxxxxx

12 x xxxx xxxxxx

xxxx xxxxx

-4368

10.31

xxxxxxxxx xxx = xxxxx x xxxxx (78)

 

xxxxx x xxxxxx x

xxxxxxx

xxxxxx

12

12

xx

Y = 10.31 X -22.56

12 xxxxx will end in xxxxxxxx , so xxx xxxxx xx 3rd year x= xx

x x xxxxxx -22.56 = 132.09

xxx

xxxxxxxxxx xxxxxxxx

xxxxxxxxxx Equation(y) = a x bx

xxxxxxxx x xxxxxx x xxxxxxxxxxx x xxxxxx -

- - - more text follows - - -

file2.xlsx preview (271 words)

xxxxxx

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxx xxxx
Month (X)x= (X-mean X)x^2Sales xxxy= (Y-mean xx xxxxxxxxxxxxxxx xxxxxxxx
1 -5.5 xxxxx xxxx xx 169xxxxx xxxxxxxxxx xxxxxxxxxxx = x + xx
x-4.5 20.25xxxx 9 81 -40.5xxxxxxxx x xxxxxx - (ΣX)(ΣY)) x xxxxxx - (ΣX)2)
3-3.512.25 xxxxxxxxx -35Intercept(a) x xxxx x b(ΣX)) / N
x -2.5 xxxxxxxx xxx -22.5
5 -1.5 2.25 xxxxx 90.25 -14.25 where
6 xxxx xxxx 44 -0.5xxxx xxxx               x and y xxx xxx variables.
70.5xxxxxxxx -10 100 xx              x = xxx slope of xxx xxxxxxxxxx xxxx
x xxx2.2536-8.572.25xxxxxx              x x The xxxxxxxxx point xx xxx xxxxxxxxxx xxxx xxx the x axis.
9 2.5xxxx xxxxxxxxxxxxx              x x xxxxxx of xxxxxx xx xxxxxxxx
103.5 12.25 xx-14.5xxxxxx xxxxxx               X x xxxxx xxxxx
xxxxx 20.25 36.5 xx64 -36              x = Second xxxxx
xxxxx 30.2553 xxx 72.25 xxxxx               ΣXY = Sum of the xxxxxxx of first xxx Second Scores
xxxxxxxx xxx533.5xxxx1364.25 xxxxxxx           

- - - more text follows - - -


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