1 e 4 Self-Test: Problems Help Save & Exit Submit Johnson Industries received a

Question

1 e 4 Self-Test: Problems Help Save & Exit Submit Johnson Industries received a contract to develop and produce four high-intensity long-distance receiver/t for cellular telephones. The first took 2.400 labor hours and $42.000 worth of purchased and manufactured parts; the ansmitters second took 1460 labor hours and $29,820 in perts; the third took 1,160 labor hours and $25,200 in parts, and fourth took 861 labor hours and $20,580 in parts. Johnson was asked to bid on a follow-on contrect for another dozen receivertransmitter units. Hint There are two learning curves-one for labor and one for parts.) Use Exhibit 6.5 a. How many labor hours should Johnson estimate are needed for the additional 12 units? (Round your answer to the nearest whole number.) b. How much should Johnson estimete the perts cost will be for the additional 12 units? (Round your answer to the nearest dollar amount.) lot 31 Next >

Explanation / Answer

a) 5,518 ± .1%

explain:

First, estimate the labor learning percentage by averaging the learning between the 1st and 2nd units, and between the 2nd and 4th units.

You would then use the cumulative factors in Exhibit 6.5. You want to find the time needed for the 5th through 16th units.

That is equal to the time for all 16 units minus the time for the first 4.

So take the cumulative factor for 16 units, subtract off the cumulative factor for 4 units and multiply the result by the first unit’s production time.

b) 157,752 ± .1%

First, estimate the parts cost learning percentage by averaging the learning between the 1st and 2ndunits, and between the 2nd and 4th units.

You would then use the cumulative factors in Exhibit 6.5. You want to find the parts cost needed for the 5th through 16th units.

That is equal to the cost for all 16 units minus the cost for the first 4.

So take the cumulative factor for 16 units, subtract off the cumulative factor for 4 units and multiply the result by the first unit’s parts cost.

First, estimate the parts cost learning percentage by averaging the learning between the 1st and 2ndunits, and between the 2nd and 4th units.

You would then use the cumulative factors in Exhibit 6.5. You want to find the parts cost needed for the 5th through 16th units.

That is equal to the cost for all 16 units minus the cost for the first 4.

So take the cumulative factor for 16 units, subtract off the cumulative factor for 4 units and multiply the result by the first unit’s parts cost.

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