company's orders come from first-time customers. A random sample of 159 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is between 0.21 and 0.38? (Enter your answer as a number accurate to 4 decimal places.) Answer =
We wish to estimate what proportion of adult residents in a certain county are parents. Out of 500 adult residents sampled, 135 had kids. Based on this, construct a 85% confidence interval for the proportion p of adult residents who are parents in this county. Express your answer in tri-inequality form. Give your answers as decimals, to three places. < p < Express the same answer using the point estimate and margin of error. Give your answers as decimals, to three places. = +
Based on historical data, your manager believes that 31% of the Based on historical data, your manager believes that 31% of the company's orders come from first-time customers. A rando
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