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.

step-by-step explanation:

once you graph it hit 2nd (the blue button) and graph

that takes you to a table of coordinates

on the left is x coordinates and on the right is y coordinates and an empty box

(you may have to scroll up/down in order to get ( x, 0)

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints