7/25/2019 Solution_Excel_Problem 3-7.xlsx

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Question 3-7

0.3 0.2

Day Loafs Trend estimate T4 = (228 - 200) 3 = !.33

1 200 Day De"i#eries $eries estimate $4 = (200 % &% 2

2 214

3 211 $ T T*

4 228 2'3.2 !.333333

5 235 22+.3083 '0.07833 222.833

6 232 23.0707 !.8''33 23+.38+7

7 248 24.820' '0.00'!! 244.888

8 250 24.074 !.+2++3 2.822

9 253 2+0.0!7 !.008!77 2+3.728'

10 267 2+8.7+3' 8.8788 2+!.'8+

11 281 278.+34+ !.0+0+04 277.+20!

12 275 283.88+7 8.2!888! 287.+!213 280 288.2!! 7.+77+ 2!2.'8+

14 288 2!3.++84 7.08'8!7 2!+.0!7+

15 310 303.22 7.+3+882 300.702

16 3''.'+2'

Q 3.7 Part C

Day (t) Loafs (y) t.y t^2 TAF

' 200 200 ' 202.47 2.47 -

2 2'4 428 4 20!.47 4.3 -

3 2'' +33 ! 2'+.47 .47 -

4 228 !'2 '+ 223.47 4.3 -

23 ''7 2 230.47 4.3 222.8

+ 232 '3!2 3+ 237.47 .47 23+.3!

7 248 '73+ 4! 244.47 3.3 244.8!

8 20 2000 +4 2'.47 '.47 2.82

! 23 2277 8' 28.47 .47 2+3.73

'0 2+7 2+70 '00 2+.47 '.3 2+!.2

'' 28' 30!' '2' 272.47 8.3 277.+2

'2 27 3300 '44 27!.47 4.47 287.70

'3 280 3+40 '+! 28+.47 +.47 2!2.'!

'4 288 4032 '!+ 2!3.47 .47 2!+.'0

' 3'0 4+0 22 300.47 !.3 300.7

120 3772 32136 1240 Tota" 73.47 Tota"

,D 4.8!8 ,D

Linear

TrendForeast !et!

7/25/2019 Solution_Excel_Problem 3-7.xlsx

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"ore a#rate

s"oe 7

inter/et a '!.4++7

7/25/2019 Solution_Excel_Problem 3-7.xlsx

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8) 4 = 2'3.2

-

-

-

-

'2.42

4.3!

3.''

.82

'0.73

2.2

3.38

'2.70

'2.'!

8.'0

!.2

84.+'

7.+!2

!et!

7/25/2019 Solution_Excel_Problem 3-7.xlsx

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