A research company desires to know the mean consumption of milk per week among people over age 20 20 . They believe that the milk consumption has a mean of 4.5 4.5 liters, and want to construct a 99% 99% confidence interval with a maximum error of 0.09 0.09 liters. Assuming a standard deviation of 1.2 1.2 liters, what is the minimum number of people over age 20 20 they must include in their sample? Round your answer up to the next integer.

26

step-by-step explanation:

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4

the first domain and range set to the left is matched with the top relation, and the second set the set in the middle goes with the bottom relation.