The national assessment of educational progress (naep) includes a mathematics test for eighth-grade students. scores on the test range from 0 to 500. suppose that you give the naep test to an srs of 900 eighth-graders from a large population in which the scores have mean μ = 285 and standard deviation σ = 125. the mean x will vary if you take repeated samples.

suppose that we took an srs of 1600 eighth-graders and found x = 288. compared with an srs of 900 eighth-graders, the margin of error for a 95% confidence interval for μ is which of the following?

a)smaller
b)larger
c) either smaller or larger, but we can't say which

definition: a circle is the  set of all points in a plane that are equidistant  from a given  point  called the center of the circle. we use the symbol ⊙ to represent a circle. the a line segment from the center of the circle to  any point  on the circle is a radius of the circle.

step-by-step explanation:

i googled it and this is what i got i don't know how it is. sorry.

goog may have it for you

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls

what is the information provided?

step-by-step explanation: