Question: 42
(Choose 1 answer)
(See picture)
A. (i)
B. (ii)
C. (iii)
D. (iv)
A solar panel company claims that the installation of their product will increase
energy output by at least 20 kilowatt-hours per day. A technician installed the
product on 30 homes and found that the average increase was only 19 kilowatt-
hours, with a standard deviation of 6.2 kilowatt-hours. What are the appropriate
null and alternative hypotheses?
(i)
Ho: 20 and H₁: μ 20
(ii)
Hoμ= 20 and H₁: μ<20
(iii)
Ho:
20 and H₁: μ> 20
(iv)
Ho:
22 and H₁: μ # 20
