From a population of 2000 accounts receivable, a simple random sample of 120 accounts is selected. Thirty-six of the accounts in the sample were overdue.
a. Estimate the standard error of the proportion of the overdue accounts.
b. Develop an approximate 95 confidence interval for the proportion of overdue accounts in the population.
Question 2
The standard deviation is the _____.
a. variance squared
b. square root of the sum of the deviations from the mean
c. same as the expected value
d. positive square root of the variance
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The population of Asia increases rapidly, the demand for food and water is also growing