Use the data set to

(a) find the sample mean,

(b) find the sample standard deviation, and

(c) construct a 99% confidence interval for the population mean.

assume the population is normally distributed.

the weekly time (in hours) spent weight lifting for 16 randomly selected college football players:

7.4, 5.8, 7.3, 7.0, 8.9, 9.4, 8.3, 9.3, 6.9, 7.5, 9.0, 5.8, 5.5, 8.6, 9.3, 3.8

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.