SOM 307 - Data Analysis and Modeling » Fall 2021 » mid 1307 f21
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Question #1
Given the data containing the volume of production (or sales), and corresponding sales price and total costs. Volume of Production - Price (dollars) - Total Production Cost (dollars) 10 1539 18480 30 1313 24034 35 1115 23044 45 1102 27723 70 796 30419 100 352 42437 Compute the maximum potential sales price.
A.
1659 dollars.
B.
2064 dollars.
C.
1651 dollars.
D.
1313 dollars.
E.
1709 dollars.
Question #2
Given the data containing the volume of production (or sales), and corresponding sales price and total costs. Volume of Production - Price (dollars) - Total Production Cost (dollars) 10 1539 18480 30 1313 24034 35 1115 23044 45 1102 27723 70 796 30419 100 352 42437 Compute the maximum potential sales quantity.
A.
105 units.
B.
168 units.
C.
125 units.
D.
116 units.
E.
129 units.
Question #3
Given the following data. Answer the following questions using an initial alpha value of 0.4. t At 1 7390 2 8947 3 8415 4 2815 5 6242 6 8243 7 2714 8 12254 9 12679 10 10513 11 7774 12 4667 13 14264 14 3937 15 4899 16 10124 17 3284 18 4950 19 6246 20 6822 21 5190 22 11324 23 8999 24 6998 25 3353 26 9386 27 6420 28 4540 29 2355 30 4026 31 6348 32 2378 33 10830 34 7148 35 2391 36 3542 37 5953 38 3561 39 11697 40 4912 41 11081 42 7688 43 4075 44 2165 45 8658 46 11184 47 6182 48 6875 49 9963 50 1848 Compute your forecast for period 51.
A.
8045.39 units.
B.
6520.1 units.
C.
7392.56 units.
D.
7662.63 units.
E.
5724.45 units.
Question #4
Given the following data. Answer the following questions using an initial alpha value of 0.4. t At 1 7390 2 8947 3 8415 4 2815 5 6242 6 8243 7 2714 8 12254 9 12679 10 10513 11 7774 12 4667 13 14264 14 3937 15 4899 16 10124 17 3284 18 4950 19 6246 20 6822 21 5190 22 11324 23 8999 24 6998 25 3353 26 9386 27 6420 28 4540 29 2355 30 4026 31 6348 32 2378 33 10830 34 7148 35 2391 36 3542 37 5953 38 3561 39 11697 40 4912 41 11081 42 7688 43 4075 44 2165 45 8658 46 11184 47 6182 48 6875 49 9963 50 1848 Compute the MAD value for period 50.
A.
2981.64 units.
B.
3024.65 units.
C.
B: 2977.69 units.
D.
4110.4 units.
E.
2476.64 units.
Question #5
Given the following data. Answer the following questions using an initial alpha value of 0.4. t At 1 7390 2 8947 3 8415 4 2815 5 6242 6 8243 7 2714 8 12254 9 12679 10 10513 11 7774 12 4667 13 14264 14 3937 15 4899 16 10124 17 3284 18 4950 19 6246 20 6822 21 5190 22 11324 23 8999 24 6998 25 3353 26 9386 27 6420 28 4540 29 2355 30 4026 31 6348 32 2378 33 10830 34 7148 35 2391 36 3542 37 5953 38 3561 39 11697 40 4912 41 11081 42 7688 43 4075 44 2165 45 8658 46 11184 47 6182 48 6875 49 9963 50 1848 Compute standard deviation of forecast for period 51.
A.
3722.12 units.
B.
3727.05 units.
C.
3780.81 units.
D.
5138 units.
E.
2127.88 units.
Question #6
Given the following data. Answer the following questions using an initial alpha value of 0.4. t At 1 7390 2 8947 3 8415 4 2815 5 6242 6 8243 7 2714 8 12254 9 12679 10 10513 11 7774 12 4667 13 14264 14 3937 15 4899 16 10124 17 3284 18 4950 19 6246 20 6822 21 5190 22 11324 23 8999 24 6998 25 3353 26 9386 27 6420 28 4540 29 2355 30 4026 31 6348 32 2378 33 10830 34 7148 35 2391 36 3542 37 5953 38 3561 39 11697 40 4912 41 11081 42 7688 43 4075 44 2165 45 8658 46 11184 47 6182 48 6875 49 9963 50 1848 Compute the best alpha value to three decimal points.
A.
0.083.
B.
0.161.
C.
0.236.
D.
0.209.
E.
0.44.
Question #7
Actual demand in month 8 is 220 units. The 4-period moving average in month 7 was 120 units. What is 5-period moving average in month 8?
A.
100
B.
110
C.
140
D.
150
E.
120
Question #8
For what value of α, forecast using exponential smoothing becomes a straight line with no variations?
A.
α =0.5
B.
α =0.25
C.
α =0
D.
α =1
E.
α =0.75
Question #9
I- To select the best forecasting technique II- To estimate the standard deviation of the forecast III- To see if the forecast is within control limits IV- To see if the forecast does not show any specific pattern
A.
None of the answers
B.
The main two applications of MAD are II and III. The main two applications of Tracking Signal are I and IV.
C.
The main two applications of MAD are I and IV. The main two applications of Tracking Signal are II and III.
D.
The main two applications of MAD are I and III. The main two applications of Tracking Signal are II and IV.
E.
The main two applications of MAD are I and II. The main two applications of Tracking Signal are III and IV.
Question #10
Exponential smoothing is being used to forecast demand. The previous forecast of 120 turned out to be 12 units smaller than the actual demand. The next forecast is 126. Compute the alpha
A.
0.75
B.
0.8
C.
0.5
D.
0.6
Question #11
If the coefficient of determination (R-Squared) between the volume of production (x) and total production costs (y) is 0.9, this means:
A.
90% of the x values are equal.
B.
None of the answers
C.
90% of the variation in y can be explained by the variation in x.
D.
90% of the variation in x can be explained by the variation in y.
E.
90% of the y values are positive.
Question #12
Which value of the following correlation coefficients (CC or R) indicates a stronger correlation?
A.
-0.9
B.
0.6
C.
-0.4
D.
0.5
Question #13
Given the following data and a 4-period weighted moving average. t At 1 17 2 12 3 20 4 14 5 13 Supposed the weights of the four periods are 0.05, 0.25, 0.3, 0.4 for the OLDEST to NEWEST periods, respectively. Compute the average of age of data in this 4-period weighted moving average.
A.
1.85
B.
2.15
C.
2.05
D.
1.95
E.
1.75
Question #14
Given the following data and a 4-period weighted moving average. t At 1 17 2 12 3 20 4 14 5 13 Supposed the weights of the four periods are 4, 7, 8, 11 for the OLDEST to NEWEST periods, respectively. Compute the 4-period weighted moving average in period 5.
A.
16.38
B.
16.44
C.
12.56
D.
12.77
E.
14.77
Question #15
Level and trend in period 16 of a trend adjusted exponential smoothing are 84 and 8, respectively. Compute forecast for period 17. Enter your answer with no decimal point.
A.
92
B.
82
Question #16
Level and trend in period 18 of a trend adjusted exponential smoothing are equal to 156 and 14, respectively]. Suppose the actual demand in period 19 is 212. Assume alpha equal to 0.9, and beta equal to 0.3. Compute level in period 19. Enter your answer with one decimal point.
A.
208.7
B.
207.8
Question #17
The level and trend in period 17 in a trend adjusted exponential smoothing are 118, and 9, respectively. The actual demand in period 18 is 120. Assuming alpha = 0.6, and beta = 0.6. Compute trend in period 18. Enter your answer with one decimal point.
A.
6.5
B.
9.5.
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