Suppose you want to determine the average height of college basketball players in NCAA Division I. In a random sample of 10 players, the sample average is 72.075 inches with a standard deviation of 4.8507 inches. What is the 95% confidence interval for the average height of all NCAA D-I players

95% confidence interval for the average height of all NCAA D-I players is [68.61 , 75.54].

Step-by-step explanation:

We are given that in a random sample of 10 players, the sample average is 72.075 inches with a standard deviation of 4.8507 inches.

So, the pivotal quantity for 95% confidence interval for the average height is given by;

           P.Q. = ~

where, = sample average height = 72.075 inches

             s = sample standard deviation = 4.8507 inches

             n = sample of players = 10

              = population mean height

So, 95% confidence interval for the population mean height, is ;

P(-2.262 < < 2.262) = 0.95

P(-2.262 < < 2.262) = 0.95

P( < < ) = 0.95

P( < < ) = 0.95

95% confidence interval for = [ ,   ]

                                               = [ , ]

                                                = [68.61 , 75.54]

Therefore, 95% confidence interval for the average height of all NCAA D-I players is [68.61 , 75.54].

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.