D 3) Four different lines are drawn on a coordinate plane. The lines all pass through the origin, and
each line passes through one of the points listed below.
(1,0) (8,4) (2,6) (4,4)
Which of the points is on the line with the GREATEST slope?
A. (1,0)
B. (8,4)
C. (2,6)
D. (4,4)

Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.