I was given the following exercise:
The Results obtained by 10 students in a test are the following:
72 95 79 83 93 80 91 74 70 86
Test the hypothesis that the mean score is 75.Use two test:one parametric and another non-parametric.
My doubt is for the parametric test, should I make a t-student test? Because I don't have a big sample to use the normal distribution...
x = c(72, 95, 79, 83, 93, 80, 91, 74, 70, 86); shapiro.test(x);
. The p-value is $0.65$, then it is reasonable to use a t-test. Final hint:t.test(x, mu=75, alternative="two.sided")
. $\endgroup$ – user10525 Nov 12 '12 at 20:00