You are designing a study to look at birth outcomes of teenage pregnancies. The first variable you want to evaluate is birth weight. You want to know how many teenage mothers you need to sample in order to accurately measure the mean birth weight of babies born to mothers age 15 and under. Your confidence interval is 95% and your margin of error cannot exceed 100 g. You have an estimated mean birth weight of 3300 g with a standard deviation of 250 g based on information you have obtained from the State Office of Vital Records. Conduct a sample size calculation. What is the smallest number of teenage mothers you will need to make an accurate estimate

50*10 is greater

step-by-step explanation:

if you add the zero from 10 to 50, it will give you a bigger number.

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

answer: i think you should do the math and pay attention in class : )

step-by-step explanation:

that is truly what   think but if i get the answer i will