Doncouse_Jeremy_Week6

# Doncouse_Jeremy_Week6 - Out of 17 times the average time is...

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Jeremy Doncouse MGMT 408 Case Study Chapter 10 1. How big should the sample be for a statistically accurate standard. Observation mean 1 2.05 1.9 0.15 0.02 2 1.92 1.9 0.02 0 3 2.01 1.9 0.11 0.01 4 1.89 1.9 -0.01 0 5 1.77 1.9 -0.13 0.02 6 1.8 1.9 -0.1 0.01 7 1.86 1.9 -0.04 0 8 1.83 1.9 -0.07 0 9 1.93 1.9 0.03 0 10 1.96 1.9 0.06 0 11 1.95 1.9 0.05 0 12 2.05 1.9 0.15 0.02 13 1.79 1.9 -0.11 0.01 14 1.82 1.9 -0.08 0.01 15 1.85 1.9 -0.05 0 16 1.85 1.9 -0.05 0 17 1.99 1.9 0.09 0.01 mean = 1.90 0.13 mean = 1.9 s = 0.09 z = 3 (table S10.1) h = .05 Therefore, round up to 9 observations. 2. Is the sample size adequate? Yes. 3. How many units should be produced at this workstation per day?
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Unformatted text preview: Out of 17 times, the average time is 1.90. For a 7.5 hour work day there are 450 minutes. normal time = standard time = 450/2.33 = 193 units 4. What is the cost per unit for this task in direct labor hours? Cost per day per station is 12.50 * 8 = \$100. If 193 units are produced, then the cost per unit is 193/\$100 = \$1.93. x i x i- mean (x i- mean) 2...
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