Assignment:
People end up tossing 12% of what they buy at the grocery store (Reader's Digest. March. 2009). Assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior.
a. Show the sampling distribution of P-. the proportion of groceries thrown out by your sample respondents.
b. What is the probability that your survey will provide a sample proportion within ±.03 of the population proportion?
c. What is the probability that your survey will provide a sample proportion within ±.0l5 of the population proportion?
Provide complete and step by step solution for the question and show calculations and use formulas.