In a test of the effectiveness of garlic for lowering cholesterol, subjects were treated with raw garlic. Cholesterol levelswere measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (inmg/dL) have a mean of and a standard deviation of . Use a significance level to test the claim that with garlictreatment, the mean change in LDL cholesterol is greater than . What do the results suggest about the effectiveness of thegarlic treatment

cut 138 centimeters off

step-by-step explanation:

250-112 = 138

14

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.