Question

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): 75 106 132 120 60 64 Assume that the population of x values has an approximately normal distribution. (a) Use a calculator with mean and sample standard deviation keys to find the sample mean weight x and sample standard deviation s. (Round your answers to one decimal place.) x = lb s = lb (b) Find a 75% confidence interval for the population average weight μ of all adult mountain lions in the specified region. (Round your answers to one decimal place.) lower limit lb upper limit lb

Answer 1

	Values ( X )
	75	318.0266
	106	173.362
	132	1534.0304
	120	738.0296
	60	1078.0256
	64	831.3592
Total	557	4672.8334

Mean

Standard deviation

Confidence Interval



Lower Limit =
Lower Limit = 76.5969
Upper Limit =
Upper Limit = 109.0697
75% Confidence interval is ( 76.6 , 109.1 )