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Under older Federal Aviation Administration rules, airlines had to estimate the weight of a passenger as 185 pounds. (That amount is for an adult traveling in winter, and it includes 20 pounds of carry-on baggage.) Current rules require an estimate of 195 pounds. Men have weights that are normally distributed with a mean of 172 pounds and a standard deviation of 29 pounds.
a. If 1 adult male is randomly selected and is assumed to have 20 pounds of carry-on baggage, find the probability that his total is greater than 195 pounds.
b. If a Boeing 767-300 aircraft is full of 213 adult male passengers and each is assumed to have 20 pounds of carry-on baggage, find the probability that the mean passenger weight (including carry-on baggage) is greater than 195 pounds. Does a pilot have to be concerned about exceeding the weight limit?
36 values given here are based on summary statistics from research by cumming. Do you think that these data are normally distributed?
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Using equation presented calculate SST,SSE and SSr. Determine least squares regression line for this data.
Basic Statistics problem
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