Kizspy Question: 42
(Choose 1 answer)
(See picture)
A. Reject Ho
B. Do not reject Ho
An article in the ASCE Journal of Energy Engineering
(1999, Vol. 125, pp. 59-75) describes a study of the
thermal inertia properties of autoclaved aerated concrete
used as a building material. Five samples of the material
were tested in a structure, and the average interior
temperature (in ºC) reported was as follows:
23.01, 22.22, 22.04, 22.62, 22.59
which implies a sample mean of 22.496 and a sample
standard deviation of 0.378.
Test the hypothesis Ho: = 22.5 versus H₁: 22.5
using α = 0.05. Assume the data are normally distributed.
Let
Zoos= 1.645, 20.025= 1.96, to025,4=2.776, to03,4=2.132,
to.025,5 2.571, to.05.5 = 2.0
