Based on historical data, your manager believes that 28% of the company's orders come from first-time customers. A random sample of 146 orders will be used to estimate the proportion of...

Based on historical data, your manager believes that 28% of the company's orders come from first-time customers. A random sample of 146 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is less than 0.31?


Note: You should carefully round any z-values you calculate to 4 decimal places to match wamap's approach and calculations.


Answer =  (Enter your answer as a number accurate to 4 decimal places.)