Question

In a test of the effectiveness of garlic for lowering cholesterol, 61 subjects were treated with raw gari. Cholesterol levels were measured before and ster the treatment. The changes before minus ather) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.4 and a standard deviation of 232 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 only the null and emotive hypotheses, tost state, Palus, and state the final conclusion that addresses the original claim What are the nul and tomative hypotheses? A HOmg/dL OB. H. mg/dl. Home Hom/ OC. Ho molt D Hmo Himg/dl Hom/dl. Determine the test statistie Round to two decimal places as needed)

can you find the test statistic and p value please?

Answer 1

x̅ = 0.4, s = 23.2, n = 81

Null and Alternative hypothesis:

Ho : µ = 0 ; H1 : µ > 0

Test statistic:

t = (x̅- µ)/(s/√n) = (0.4 - 0)/(23.2/√81) = 0.16

df = n-1 = 80

p-value = T.DIST.RT(0.16, 80) = 0.437