In a test of the effectiveness of garlic for lowering​ cholesterol, 81 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 0.8 and a standard deviation of 21.4. Use a 0.10 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. 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/dL   D. H0​: μ=0​mg/dL H1​: μ>0mg/dL Determine the test statistic.     Determine the​ P-value.

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In a test of the effectiveness of garlic for lowering​ cholesterol,
81 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 0.8 and a standard deviation of 21.4. Use a 0.10 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.
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/dL
 
D.
H0​:
μ=0​mg/dL
H1​:
μ>0mg/dL
Determine the test statistic.
 
 
Determine the​ P-value.
 
 
State the final conclusion that addresses the original claim.
(reject/fail to reject)
 
 
H0.
There is
(not sufficient/sufficent)
 
 
evidence to conclude that the mean of the population of changes
(is greater than/is less than/equal to/is not)
 
 
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