Question

   Here   are   the   population   parameters   of   the   bears:       ?=207.6 ??? ?=96.6 ???

In the habitat of our bears is a very deep and steep canyon that is spanned by a single log of length 6 feet and width of 2 feet. The bears can use the log to transverse the canyon. The load limit of the log (unknown to the bears) is 260 pounds. Draw Diagrams, as always.
a) Find the probability that a single randomly selected bear weighs more than 260 pounds.






b) Find the probability that a random sample of 8 bears has a mean weight greater than 260 pounds. Also, what assumption(s) are you making that insures your answer to this problem has validity.






c) Which of the results, part (a) or part (b) should concern the bears that cross the log? Why?

Answer 1