In a test of the effectiveness of garlic for lowering cholesterol, 42 subjects were treated with garlic in a processed tablet form. cholesterol levels were measured before and after the treatment. the changes (beforeminusafter) in their levels of ldl cholesterol (in mg/dl) have a mean of 3.4 and a standard deviation of 18.2. construct a 90% confidence interval estimate of the mean net change in ldl cholesterol after the garlic treatment. what does the confidence interval suggest about the effectiveness of garlic in reducing ldl cholesterol?

90% Confidence interval:  (-1.21,8.01)

Step-by-step explanation:

We are given the following information in the question:

Sample size, n = 42

Sample mean = 3.4

Sample standard Deviation = 18.2

90% Confidence interval:

Putting the values, we get,

Since, the confidence interval limits contain 0, suggesting that the garlic treatment did not affect the LDL cholesterol levels.

answer: just subtact the units and then add the non negative : happy to

step-by-step explanation:

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2