# Business Forecasting, For calculation, please use precision level at least three digits…..

Please read each question carefully. In answering, please show your detailed analysis and calculations in a well-structured and clear way. Please show in details your steps of solving the problems, list relevant formulas used, hypotheses, essential calculations, etc. Relevant and only relevant Minitab and Excel outputs should be copied and pasted into your Word file, to support your analysis. Partial points will be deducted if you do not show your steps in solving the problems.

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For calculation, please use precision level at least three digits after the decimal point. .

For hypothesis test, please use significance level of a = 0.05. 2

Document Preview:

XYZ.MTW
Sales
Year
Quarter
1.00
1.00
1201.44
1.00
2.00
1147.43
1.00
3.00
1348.20
1.00
4.00
1414.68
2.00
1.00
1248.78
2.00
2.00
1167.44
2.00
3.00
1359.76
2.00
4.00
1496.87
3.00
1.00
1290.21
3.00
2.00
1159.61
3.00
3.00
1414.12
3.00
4.00
1435.83
4.00
1.00
1311.38
4.00
2.00
1335.09
4.00
3.00
1477.47
4.00
4.00
1505.96
5.00
1.00
1275.24
5.00
2.00
1208.91
5.00
3.00
1431.32
5.00
4.00
1527.28
6.00
1.00
1449.24
6.00
2.00
1364.90
6.00
3.00
1487.56
6.00
4.00
1744.96
7.00
1.00
1370.27
7.00
2.00
1320.36
7.00
3.00
1533.24
7.00
4.00
1650.69
8.00
1.00
1523.06
8.00
2.00
1443.96
8.00
3.00
1573.34
8.00
4.00
1669.73
9.00
1.00
1624.16
9.00
2.00
1509.48
9.00
3.00
1652.25
9.00
4.00
1723.45
10.00
1.00
1603.00
10.00
2.00
1584.55
10.00
3.00
1665.45
10.00
4.00
1740.13
11.00
1.00
1687.14
11.00
2.00
1587.66
11.00
3.00
1754.79
11.00
4.00
1891.36
12.00
1.00
1730.52
12.00
2.00
1708.32
12.00
3.00
1713.98
12.00
4.00
1835.33
13.00
1.00
1880.99
13.00
2.00
1655.57
13.00
3.00
1863.79
13.00
4.00
1958.38
14.00
1.00
1851.77
14.00
2.00
1832.72
14.00
3.00
1990.75
14.00
4.00
1929.15
15.00
1.00
2039.19
15.00
2.00
1681.48
15.00
3.00
1993.61
15.00
4.00
1979.70
16.00
1.00
1941.02
16.00
2.00
1855.22
16.00
3.00
1945.58
16.00
4.00
1949.85
17.00
1.00
1983.13
17.00
2.00
1904.83
17.00
3.00
2065.04
17.00
4.00
2152.85
18.00
1.00
2079.91
18.00
2.00
1883.52
18.00
3.00
2086.54
18.00
4.00
2139.86
19.00
1.00
2124.01
19.00
2.00
1957.94
19.00
3.00
2211.93
19.00
4.00
2210.08
20.00
1.00
2085.85
20.00
2.00
2080.72
20.00
3.00
2227.69
20.00
4.00
2322.78

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