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In: Statistics and Probability

a.) Viscosity measurements for a certain petroleum fraction can be modelled using a normal distribution with...

a.) Viscosity measurements for a certain petroleum fraction can be modelled using a normal distribution with a mean of 41 and a standard deviation of 7. The 99th percentile of this distribution is

b.) Suppose X has a normal distribution with mean 3 and standard deviation 1. The 95th percentile of this distribution is

Group of answer choices

c.) United Airlines Flight 433 is a nonstop flight from Boston’s Logan airport to San Francisco International Airport. An important factor in scheduling such flights is the actual airborne flying time from takeoff to touchdown. Suppose the airborne flying time is distributed as normal with mean 370 minutes and standard deviation 16 minutes. 31 records of the times (in minutes) that it takes flight 433 to fly from Boston’s Logan airport to San Francisco International Airport are randomly selected from the 2016 database. What is the sampling distribution of the average airborne flying time?

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orchestra answered 2 years ago
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