An executive of a particular company recently traveled to London, Paris, and Rome. He paid $280, $330, and $260 per night for lodging in London, Paris, and Rome respectively, and his hotel bills totaled $4060. He spent $130, $140, and $110 per day for his meals in London, Paris, and Rome respectively, and his expenses for meals totaled $1800. If he spent as many days in London as he did in Paris and Rome combined, how many days did he stay in each city.

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