Assume thatxhas a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)

=38;=16

P(50x70) =

Assume thatxhas a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)

=109;=11

P(x90) =

How much do wild mountain lions weigh? Adult wild mountain lions (18 months or older) captured and released for the first time in the San Andres Mountains gave the following weights (pounds): 67 106 126 123 60 64 Assume that the population ofx values has an approximately normal distribution. (a) Use a calculator with mean and sample standard deviation keys to nd the sample mean weight )7 and sample standard deviation 5. (Round your answers to one decimal place.) lb lb )7 s (b) Find a 75% confidence interval for the population average weight y of all adult mountain lions in the specied region. (Round your answers to one decimal place.) lower limit lb upper limit lb What percentage of hospitals provide at least some charity care? Based on a random sample of hospital reports from eastern states, the following information is obtained {units in percentage of hospitals providing at least some charity care): 56.8 55.6 52.9 66.4 59.0 64.7 70.1 64.7 53.5 78.2 Assume that the population ofx values has an approximately normal distribution. (a) Use a calculator with mean and sample standard deviation keys to nd the sample mean percentage )7 and the sample standard deviation 5. (Round your answers to one decimal place.) 0/0 0/0 in >