In developing an interval estimate for a population mean, a sample of 40 observations was used. The interval estimate was 28.76 ± 1.48. Had the sample size been 160 instead of 40, the interval estimate would have been: 28.76 ± 0.74

28.76 ± 0.37

7.19 ± 0.37

7.19 ± 1.48

the equation of the parallel line would be y = 2x + 9

step-by-step explanation:

to start we need to find the slope of the original line. we can do that by looking at the coefficient of x, which is 2

since the slope of the original line is 2 and parallel lines have the same slope, we know the new line will also have 2 slope. now we can use that along with the point given in point-slope form to get the find equation.

y - y1 = m(x - x1)

y - 5 = 2(x + 2)

y - 5 = 2x + 4

y = 2x + 9

ƒ = 0.03b

hope this ( :

step-by-step explanation: