I need help solving this question. A large company is considering installing charging stations for electric cars in their compan
y parking lots. Suppose that 1.5% of employees at the main office have electric cars and 2% of employees at the branch office have electric cars.
1 answer:
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Answer:
Step-by-step explanation:
We are given the following in the question:
Population mean = 200
Population standard deviation = 50
Sample size, n = 100
We have to estimate the expected value of the sample mean.
The best point estimate for the sample mean is the population mean.
Thus, we can write:
Thus, the expected value of the sample mean is 200.