Pls pls pls pls help
you choose to interview a crane operator for career day. the operator says that the maximum extension of the crane arm is 140 ft and that the crane must be 50 ft away from he building in order to put the arm all the way up. How high up a building can a crane reach when its arm is extended out the full 140 ft.

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