sally is in charge of organizing an after school event. there will be a
total of 250 people attending. she is responsible for buying tables for
the event. the table she has chosen to use for the event is
provided. based on the total number of people she has attending, how
many tables should sally buy and how much money will she
spend on the tables?

People end up tossing 12% of what they buy at the grocery store. 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. calculate the mean and the standard error for the sample proportion p. b. describe the sampling distribution of p in part a. draw a graph of this probability distribution with its mean and standard deviation. what is the probability that your survey will provide a sample proportion more than 15%? c. d. population proportion? what is the probability that your survey will provide a sample proportion within + 0.03 of the