In a test of effectiveness of garlic for lowering cholesterol, 50 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes in their levels of LDL cholesterol in (mg/dL) has a mean of 0.5 and a standard deviation of 22.0. Construct a 95% confidence interval estimate of the standard deviation of the changes in LDL cholesterol after the garlic treatment. Assume that the sample is a simple random sample obtained from a population with a normal distribution.

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

he kicked it up? is this the answer ?

step-by-step explanation:

20

step-by-step explanation:

assuming you meant there are 24 pounds of apples in each case, if this is not what you meant, correct me so i can you further