The Wonderlic Personnel Test tests general mental ability. The national average for the Wonderlic Personnel Test is 30

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The Wonderlic Personnel Test tests general mental ability.
The national average for the Wonderlic Personnel Test is 30 with a
standard deviation of 5. Dr. Cravin, a physics professor, is
confident that her PHYS 320 class would score differently than the
national average on the Wonderlic Personnel Test. Dr. Cravin
randomly sampled 10 students from her class and had them take the
test (scores reported below). Does Dr. Cravin's class differ
from than the national average on the Wonderlic Personnel
Test? Set alpha equal to .01. (9 pts)
28 33 35 29 31
34 26 33 30 32
a. Should this be a one-tailed or two-tailed test?
b. State the hypotheses in symbols (both
Ho and H1)
c. Set-up the criteria for making a decision about the
Ho. That is, what is the critical value with alpha
= .01?
d. Compute the appropriate statistical test.
Show numerator/denominator = Answer
e. Evaluate the null hypothesis. Reject or Fail to
Reject (Retain)
f. What is your conclusion (written statement)?