The following information relates to a company's defined benefit pension plan at December 31:Accumulated benefit obligation1,035
1 answer:
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Answer:
a) ME= 1.93
b) confidence interval= (19.59,23.45)
Explanation:
a) Sample of customers is 64, population standard deviation is 6 and confidence level is 99%
Sample mean= 21.52
Sample size= 64
Confidence level= 99%
Population standard deviation= 6
Standard error of the mean= 0.75
Z-value= -2.5758 (From Z table)
Interval half width= 1.9319
Margin of error at 99% confidence interval is 1.93 from the output.
b) Confidence interval
Interval upper limit= 19.59
Interval lower limit= 23.45
99% confidence interval is (19.59, 23.45) from the output.
ME= = 1.93
Answer:
Note: The full question is attached as picture below
a. Let X is denoted as company’s monthly demand, P(X=x) is denoted as the probability of the company’s monthly demand.
The expected value is obtained below:
E(X) = (300*0.20) + (400*0.30) + (500*0.35) + (600*0.15)
E(X) = 60+120+175+90
E(X) = 445
b. The expected value of the monthly demand is 445. The each unit demands the revenue to generate is $70 and their cost is $50.
The gain/loss of the company = (300*(70−50)) - (145*50)
The gain/loss of the company = (300*20) - (145*50)
The gain/loss of the company = 6,000 - 7,250
The gain/loss of the company =−$1,250(Loss)
