A hospital is analyzing its overhead costs. It is not clear whether the number of patient days or nursing hours would be the best cost driver to use in predicting the hospital’s overhead. The latest information on the hospital is as follows:
Month Hospital Nursing No. of Overhead Overhead Cost
Overhead Hours Patient Cost Per Per Patient
Costs Days Nursing Hr. Day
July $950,000 50,000 7,900 $19.00 $120.25
August $1,070,000 52,000 8,900 $20.58 $120.22
September $825,000 40,000 8,700 $20.63 $ 94.83
October $922,500 43,500 6,900 $21.21 $133.70
November $1,150,000 64,000 11,900 $17.97 $ 96.64
December $890,000 41,500 6,750 $21.45 $131.85
Required:
Intercept |
346245 |
Slope |
12.81796 |
RSQ |
0.909311 |
Round the variable portion of the regression equation formula to two decimal places. Based on the regression equation formula, what will the predicted total hospital overhead costs be if 49,000 nursing hours are expended during a month?
Intercept |
559764 |
Slope |
47.970926 |
RSQ |
0.563496482 |
Again, round the variable portion of the regression equation to two decimal places. If 8,500 patient days are predicted for a month, what is the total predicted hospital overhead costs using the regression equation?
1) The hospital's overhead costs appear to be a Mixed cost. If it were afixed cost, it would remain constant in total each month. If it were a variable cost, it would remain constant on a per unit(of activity) basis. Both of the hospital's overhead cost per nursing hour and overhead cost per patient day vary with volume | ||
2. Graph the hospital's overhead costs against nursing hours. | ||
Hospital | ||
Nursing Hours | Hospital Overhead Costs | |
50,000 | $950,000 | |
52,000 | $1,070,000 | |
40,000 | $825,000 | |
43,500 | $922,500 | |
64,000 | $1,150,000 | |
41,500 | $890,000 | |
3. Graph the hospital's overhead costs against the number of patient days. | ||
Number of Patient Days | Hospital Overhead Costs | |
7,900 | $950,000 | |
8,900 | $1,070,000 | |
8,700 | $825,000 | |
6,900 | $922,500 | |
11,900 | $1,150,000 | |
6,750 | $890,000 | |
4. Do the data appear to be sound or do you see any potential data problems? Explain. | ||
The data does appear to contain outlier in the graph depicting overhead costs against nursing hours in th month of August . In the graph of overhead costs vs. patient days, there does appear to be an outlier. The September and August data points appear out of line with the other data points. If any of the data points are out of line, management should check into this data before continuing with the analysis. | ||
5. Use the high-low method to determine the hospital's cost equation using nursing hours as the cost driver. Predict total overhead costs if 49,000 nursing hours are predicted for the month. | ||
Nursing Hours | Hospital Overhead Costs | |
High | 64,000 | $1,150,000 |
Low | 40,000 | $825,000 |
Difference | 24,000 | 325,000 |
Variable cost per unit = $325,000/24000 | $ 13.54 | |
Fixed Cost = $825,000 - $13.54 x 40000 | $ 283,333.33 | |
Cost Eq. = $283,333.33 + $13.54X | ||
Total overhead cost = $283,333.33 + $13.54 x 49000 | $ 615,104.17 | |
6) If 49000 nursing hours are predicted for the month, what is the total predicted hospitaloverhead? | ||
Intercept = fixed cost | 346,245.00 | |
X Variable 1 = Variable cost per unit | 12.81796 | |
If 49000 nursing hours are predicted for the month, what is the total predicted hospitaloverhead? | ||
Total overhead cost = $346,245 + $12.82 x 49000 | $ 974,325.04 | |
7) If 8,500 patient days are predicted for the month, what is the total predicted hospitaloverhead? | ||
Coefficients | ||
Intercept | $ 559,764.00 | |
X Variable 1 | $ 47.97 | |
If 8500 patient days are predicted for the month, what is the total predicted hospitaloverhead? | ||
Total overhead cost = 559,764 + (47.97 x 8500) | $ 967,516.87 | |
8) Which regression equation, the one using nursing hours as the cost driver or the one using patient days as the cost driver, produces the most accurate correlation (best explanation of) the predicted hospital overhead costs. How do you know that your answer is correct? In other words, justify your answer | ||
We have the most confidence in the cost equation using nursing hours. The R-square value for that equation was the highest. |
A hospital is analyzing its overhead costs. It is not clear whether the number of patient...
A hospital is analyzing its overhead costs. It is not clear whether the number of patient days or nursing hours would be the best cost driver to use in predicting the hospital’s overhead. The latest information on the hospital is as follows: Month Hospital Nursing No. of Overhead Overhead Cost Overhead Hours Patient Cost Per Per Patient Costs Days Nursing Hr. Day July $950,000 50,000 7,900 $19.00 $120.25 August $1,070,000 52,000 8,900 $20.58 $120.22...
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