It has been suggested that night shift-workers show more variability in their output
levels than day workers. below, you are given the results of two independent random
samples.
night shift day shift
sample size 9 8
sample mean 520 540
sample variance 38 20
test whether the above statement is true. use a =.05.

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!

29. because you will divide each number of months by 12 to find the number of years. which would mean, 5, 12.5, 16, 45, 50, 72.5. which is crazy. anyhow, i think you find the median in the middle. and yea hope your test goes good