For inference of a MEAN, the following are used to validate "approximately normal" EXCEPT: A. If the sample is less than 30, then the sample itself has no strong skew or any outliers

B. If the population is normal, then a sample of any size is also normal

C. Large Count condition of successes and failures are at least 10

D. The Central Limit Theorem with "n" at least 30

the diameter is 16 cm. are you a teacher?

step-by-step explanation:

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation:

c) the median for town a 30" is greater than the median for town b 25"

step-by-step explanation:

town a, median = q2 = 30

town b, median - q2 = 25

so the median for town a 30" is greater than the median for town b 25"

$452.90 because you needed to round to the nearest cent