The height (in inches) of men at uh is assumed to have a normal distribution with a standard deviation of 3.6 inches. the height (in inches) of women at uh is also assumed to have a normal distribution with a standard deviation of 2.9 inches. a random sample of 49 men and 38 women yielded respective means of 68.3 inches and 64.6 inches. find the 90% confidence interval for the difference in the heights of men at uh and women at uh

2.12 school absences. data collected at elementary schools in dekalb county, ga suggest that each year roughly 25% of students miss exactly one day of school, 15% miss 2 days, and 28% miss 3 or more days due to sickness.61 (a) what is the probability that a student chosen at random doesn’t miss any days of school due to sickness this year? (b) what is the probability that a student chosen at random misses no more than one day? (c) what is the probability that a student chosen at random misses at least one day? (d) if a parent has two kids at a dekalb county elementary school, what is the probability that neither kid will miss any school? note any assumption you must make to answer this question. (e) if a parent has two kids at a dekalb county elementary school, what is the probability that both kids will miss some school, i.e. at least one day? note any assumption you make.