The president of Doerman Distributors, Inc., believes that 30% of the firm's orders come from first-time customers. A simple random sample of 100 orders will be used to estimate the proportion of...

Plz answer b and c parts in 20 minutes and gets thumb up


Extracted text: The president of Doerman Distributors, Inc., believes that 30% of the firm's orders come from first-time customers. A simple random sample of 100 orders will be used to estimate the proportion of first-time customers. Use z-table. a. Assume that the president is correct and p = 0.30. What is the sampling distribution of p for this study? Select your answer b. What is the probability that the sample proportion will be between 0.20 and 0.40 (to 4 decimals)? C. What is the probability that the sample proportion will be between 0.25 and 0.35 (to 4 decimals)?