A sample of9

9measurments, randomly selected from a normally distributed population, resulted in a sample mean,=5 and sample standard deviation=1.46. Using=0.05, test the null hypothesis that the mean of the population is4.1 against the alternative hypothesis that the mean of the population,<4.1

<4.1by giving the following:

(a)

the degree of freedom

(b)

the critical

tvalue

(c)

the test statistic