Why do you think the two percentages do not agree

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Question: Winter Olympics 2006 downhill. Fifty-three men qualified for the men's alpine downhill race in Torino. The gold medal winner finished in 1 minute, 48.8 seconds. All competitors' times (in seconds) are found in the following list:

754_Winter.png

a) The mean time was 113.02 seconds, with a standard deviation of 3.24 seconds. If the Normal model is appropriate, what percent of times will be less than 109.78 seconds?

b) What is the actual percent of times less than 109.78 seconds?

c) Why do you think the two percentages don't agree?

d) Create a histogram of these times. What do you see?

Reference no: EM131712582

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