1. 500 students took a chemistry test. You sampled 100 students
to estimate the average score and the standard deviation. How many
degrees of freedom were there in the estimation of the standard
deviation?
(i)
99
(ii)
100
(iii)
499
(iv)
500
2. You choose an alpha level of 0.01 and then analyze your data.
What is the probability that you will make a Type I error given
that the null hypothesis is true?
(i)
0.025
(ii)
0.05
(iii)
0.01
(iv)
0.10
