Use this information when answering this question:

n = 14

s = 20

h0: σ2 ≤ 500 and ha: σ2 > 500

the null hypothesis:
a. should be revised
b. should not be rejected
c. should be rejected
d. none of these alternatives is correct.

  c. should be rejected  

Step-by-step explanation:

n = 14

s = 20

H0: σ2 ≤ 500 and Ha: σ2 > 500

Example: What is 3 squared?

3 Squared== 3 × 3 = 9

"Squared" is often written as a little 2 like this:



This says "4 Squared equals 16"

(the little 2 means the number appears twice in multiplying, so 4×4=16)

Square Root

A square root goes the other direction:



3 squared is 9, so a square root of 9 is 3

It is like asking: