Answer Happy

In a test of the effectiveness of garlic for
lowering​ cholesterol,
36
subjects were treated with raw garlic. Cholesterol levels were
measured before and after the treatment. The changes​ (before
minus​ after) in their levels of LDL cholesterol​ (in
mg/dL) have a mean of
0.4
and a standard deviation of
1.77.
Use a
0.05
significance level to test the claim that with
garlic​ treatment, the mean change in LDL cholesterol is
greater than
0.
What do the results suggest about the effectiveness of the
garlic​ treatment? Assume that a simple random sample has been
selected. Identify the null and alternative​ hypotheses,
test​ statistic, P-value, and state the final conclusion that
addresses the original claim.
Question content area bottom
Part 1
What are the null and alternative​ hypotheses?
A.
H0​:
μ=0
​mg/dL
H1​:
μ<0
​mg/dL
B.
H0​:
μ=0
​mg/dL
H1​:
μ≠0
​mg/dL
C.
H0​:
μ=0
​mg/dL
H1​:
μ>0
​mg/dLYour answer is correct.
D.
H0​:
μ>0
​mg/dL
H1​:
μ<0
​mg/dL
Part 2
Determine the test statistic.
enter your response here
​(Round to two decimal places as​ needed.)