a. Calculate confidence limits for a to e using difference estimation from the information provided:

b. In general, what is the effect on the upper confidence limit (increase, decrease, no effect, or cannot determine without additional information) of each of the following independent changes, assuming the other components are held constant?

c. Determine whether the population value is acceptable as stated for each confidence limit calculated in a.

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Population size Beta risk Alpha risk Sum of sample errors (net) Standard deviation. Sample size Allowable error a b C d 2,000 2,000 5,000 5,000 1,000 5% 10% 10% 10% 10/ 20% 100% 20% 40% 20% 320 320 1,750 1,750 250 17 17 30 40 50 100 100 400 400 50 13,000 9,000 30,000 35,000 15,000