The mean annual tuition and fees for a sample of 12 private colleges was with a standard deviation of . You wish to test whether the mean tuition and fees for the population of all private colleges is greater than . Calculate the test statistic value and give its P-value for this test. Assume the population is normally distributed.

A) t = 2.38; 0.01 < P-value < 0.02

B) t = 2.38; 0.02 < P-value < 0.05

C) z = 2.38; P-value = 0.0087

D) t = 2.38; 0.01 < P-value < 0.025

E) z = 2.38; P-value = 0.0174

answer:

a=9

step-by-step explanation: lmk if you need a explanation

1. 523.33 cubic inches

2. 113.04 cubic inches.

3. 17.41.

4. 16.49

i think this should be your answer

hope i

-lavira : )

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x