B if 40 different pilots are randomly selected find

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b.) If 40 different pilots are randomly selected, find the probability that their mean weight is between 140 lb and 201 lb. c.) When redesigning the ejection seat, which probability is more relevant?
44.) A: no the points do not lie close to a straight line. 45.) Sample data for the arrival delay times (in minutes) of airlines flights is given below. Determine whether they appear to be from a population with a normal distribution. Assume that this requirement is loose in the sense that the population distribution need not be exactly normal, but it must be a distribution that is roughly bell-shaped.
46.) Use a calculator or computer software to generate a normal quantile plot for the data about the ages of actresses at the times they won a particular award in the accompanying table. Then determine whether the data come from a normally distributed population.
47.) A random sample of male systolic blood pressure values is given below. Generate the normal quantile plot for this data set and determine whether or not the data come from a normally distributed population.
49.) The heights (in inches) of men listed in the accompanying table have a distribution that is approximately normal, so it appears that those heights are from a normally distributed population. Complete parts (a) through (c). a.) If 5 5 Inches is s ubtracted from each height, are the new heights also normally distributed?
b.) If each height is converted from inches to feet , are the heights in feet normally distributed? also c.) Are the logarithms of normally distributed heights also normally distributed?
50.) Which of the following is NOT a procedure for determining whether it is reasonable to assume that sample data are from a normally distributed population? Salaries of college professors

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