An eye doctor keeps his contact lenses ordered from greatest to least in prescription strength. He has prescriptions for -2.5, +0.25, -1.25, -1.5, +1.25, +0.5, -2.25. In what order should the lenses be?

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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