An electronics store sells an average of 117 home theater systems per month at a price of $213 each. When the store drops its price to $192, it sells 28 home theater systems more each month. At what price should the store sell the home theater systems to maximize its revenue? A.
$146.25
B.
$150.38
C.
$115.50
D.
$196.00

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