Answer:
Step-by-step explanation:
Hello!
The given hypotheses are to test id the population variance of a population.
H₀: σ²≤500
H₁: σ²≥500
The statistic to use to test the population variance is a Chi-Square:
χ²= [tex]\frac{(n-1)S^2}{σ^2}[/tex]~χ²ₙ₋₁
Data:
n= 14
S= 20
σ²= 500
χ²= [tex]\frac{13*400}{500}[/tex]= 10.4
None of the given choises is the right answer.
I hope it helps!
