Based on historical data, your manager believes that 28% of the
company's orders come from first-time customers. A random sample of
139 orders will be used to estimate the proportion of
first-time-customers. What is the probability that the sample
proportion is between 0.28 and 0.44?
Answer = (Enter your answer as a number accurate to 4
decimal places.)
Ans : 0.5000
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