A single factor experiment is conducted in which the factor is varied over 3 els. are calculated as y1. = 29.75, y2. = 36.75, ỹ3 = 46.25 and the ANOVA table obtained is given below. %3D %3! %3D Source DF ss MS F P 2 450.7 225.3 7.04 0.014 9 288.3 738.9 Factor Error 32.0 Total 11 5.659 R-Sq - 60.99% R-Sq (adj) - 52.328 a) Use Fisher's least significant difference to make comparisons between all pairs of means at experiment- wise error rate a = 0.05. State your conclusions. b) Use Tukey's test to make comparisons between all pairs of means at experiment-wise error rate a = 0.05. State your conclusions.

What is the correct decision for a test of the difference in two proportions if the test statistic is 1.99, n1 = 150, n2 = 225, and α = .02?

Teen Alcohol Use.  According to a publication by the University of Michigan, 52.7% of all 12th graders in the U.S. have consumed alcohol in the past month.  If 250 U.S. 12th graders are selected at random, determine the probabilities below.   a) Determine the probability that exactly 125 of those sampled have consumed alcohol in the past month.       b) Determine the probability that between 115 and 135, inclusive of those sampled have consumed alcohol in the past month.

Heights for teenage boys and girls were calculated. The mean height for the sample of 73 boys was 167 cm and the variance was 71. For the sample of 47 girls, the mean was 180 cm and the variance was 66. There is no reason to assume the variances would be equal. Estimate how much taller teenage boys are using a 96% confidence level. Express this in the (point estimate) ± (margin of error) format. Round answers to 2 decimal places. H