The mean of the 100 car speeds in Exercise 26 was 23.84 mph, with a standard deviation
Question:
a) Using a Normal model, what values should border the middle 95% of all car speeds?
b) Here are some summary statistics.
From your answer in part a, how well does the model do in predicting those percentiles? Are you surprised? Explain.
Transcribed Image Text:
Speed 100% Max 34.060 30.976 28.978 25.785 50.0% Median 23.525 21.547 19.163 16.638 16.270 Percentile 90.0% 75.0% Q3 25.0% Q1 10.0% 25% 0.0% Min
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a We know that 95 of the observations from a Normal model fall within 2 stand...View the full answer
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Related Book For
Stats Data and Models
ISBN: 978-0321986498
4th edition
Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock
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