You intend to perform a hypothesis about the population vari

You intend to perform a hypothesis about the population variance. You know that the population is normal and hypothesize that the variance is smaller than .5. You have a random sample of 20 observations with a mean of 9.4 and a standard deviation of 2.1

a) what population parameter are you testing?

b) What is the true value of the parameter you are testing?

c) what is the assumed value of teh parameter you are testing?

d) set up the null hypothesis

e) set up the alternative hypothesis.

f) identify the following: n= s= x=

g) Calculate the ² -statistic of the sample

Solution