H-8=2. The only solution to that equation is H=10. Any other number isn't.
Answer:
53.5
Step-by-step explanation:
I would say b because any number that you substitute for the variable would still make the expressions equal.
Answer:
1. Type I error = 0.0241
2. Power of test = 0.2146
Step-by-step explanation:
1.
Test statistic:
z = (x- µ)/(σ/√n)
= (0.15 - 0.125)/(0.04/√10)
= 0.025/0.0126
= 1.9764
p-value = 1- NORM.S.DIST(1.9764, 1)
= 0.0241
Type I error = 0.0241
2.
If true µ₁ = 0.14,
then Power, (1 - β) is given as;
1 - β = P(X ≥ 0.15 | µ₁ = 0.14)
= P(Z ≥ (0.15 - 0.14)/(0.04/√10) )
= P(Z ≥ 0.79)
= 1 - P(Z < 0.79)
Using excel function :
= 1 - NORM.S.DIST(0.79, 1)
= 1 - 0.7854
= 0.2146
Power of test = 0.2146
