SOLUTION: A random sample of 25 laboratory mice was taken. The mean weight for this sample is 33gm
with a sample standard deviation of 5gm. Using 0.05 significance level, test the claim th
Algebra.Com
Question 1181944: A random sample of 25 laboratory mice was taken. The mean weight for this sample is 33gm
with a sample standard deviation of 5gm. Using 0.05 significance level, test the claim that the
average weight of the mice is 30gm
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Ho: mu is 30 gm
Ha: mu NE 30 gm
alpha p{reject Ho|Ho true}=0.05
test is t (0.975, df=24)
critical value is reject for |t| > 2.064
t=(33-30)/5/sqrt(25)
=3
reject Ho: the mean is not 30 gm, it is larger.
p-value=0.012.
RELATED QUESTIONS
Consider an infinite population with a mean of 160 and a standard deviation of 25. A... (answered by stanbon)
consider an infinite population with a mean of 160 and standard deviation of 25,a random... (answered by stanbon)
The heights of 18-year-old females are approximately normally distributed with a mean of... (answered by Boreal)
A sample of 64 was taken from a population, with the mean of the sample being 119 and the (answered by Boreal,rothauserc)
One cage contains 2 white mice and 3 black ones, and another cage contains 4 white mice... (answered by ewatrrr)
The weight of a group of women has a population mean, u, of 121 pounds, and a population... (answered by rothauserc)
A wildlife study is designed to find the mean weight of salmon caught by an Alaskan... (answered by stanbon)
the height(inches) of the students on a campus is assumed to have a normal distribution... (answered by stanbon)
The heights of 18 year old American females are normally distributed with a mean of 64... (answered by Boreal)