question archive The firm believes that 30% of firm’s orders are from new customers
The firm believes that 30% of firm’s orders are from new customers
Subject:ManagementPrice: Bought3
The firm believes that 30% of firm’s orders are from new customers. Sample n=100 orders are taken to see if claim is correct at 30%. Assuming a normal distribution, what mean will be used? What is the Standard Error? What is probability that sample proportion will be between 20% and 40% ( + – 10 percentage points)? What is probability that sample proportion will be between 25% and 35% ( + – 5 percentage points)?
