Engineers want to design seats in commercial aircraft so that they are wide enough to fit 99% of all males. Accommodating 100% of males would require very wide seats that would be much too expensive.) Men have hip breadths that are normally distributed with a mean of 14.7 in. and a standard deviation of 0.8 in. Find Pgg. That is, find the hip breadth for men that separates the smallest 99% from the largest 1%. www. The hip breadth for men that separates the smallest 99% from the largest 1% is P99 = (Round to one decimal place as needed.) in.

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At a tennis tournament a statistician keeps track of every serve. The statistician reported the the mean serve speed of a particular player was 97 miles per hour (mph) and the standard deviation of the serve speeds was 11 mph. Assume that the statistician also gave us the information that the distribuation of the serve speeds was bell shaped. What percentage of the players serves are expected to be between 75mph and 130mph?   a) there are TWO "k" values in this problem. _____ (blank) and ____ (blank). Remember that "k" is the number of standard deviations from the mean.   b) the percentage of the players served betweeen 75 and 130 is ___ (blank)

The latest available data showed health care spending were $8086 per person in the United States (17.6% of GDP). Use $8086 as the population mean and $2500 as the population standard deviation. Suppose a survey firm will take a sample of 100 people to investigate their health care spending What is the sampling distribution of the mean amount of health care spending for the sample of 100 people? (i.e. shape, mean, sd) What is the probability the sample mean will be within +$200 of the population mean?