Motorcycles. The number of motorcyclists killed in motor vehicle traffic crashes in the U.S. in a 7 yearspan is below. Round your answers to 1 decimal place.4848 4946 4688 5097 4769 4816 4907a. Find the mean. 4867.3b. Find the standard deviation.deathsdeaths

Answered: Motorcycles. The number of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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esc The FICO credit score is used by banks and other lenders to determine whether someone is a good credit risk. Scores range from 300 to 859 with a score of 720 or more indicating a very good credit score. An economist wants to determine whether the mean FICO score is lower than the cutoff of 720. She finds that a random sample of 100 people had a mean FICO score of 703. If the population standard deviation is 92, can the economist conclude that the mean FICO score is less than 720? Let a = 0.05 I alt 089AE 3 9 a N 2 W ↑ S X e C d C $ 4 f % 5 t 6.0 וום 6 JARAG 8 b y h & 7 n u 0 j k 9 O alt Р ctrl { [ ? 1 backspace ег
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Motorcycles. The number of motorcyclists killed in motor vehicle traffic crashes in the U.S. in a 7 year span is below. Round your answers to 1 decimal place. 4848 4946 4688 5097 4769 4816 4907 a. Find the mean. 4867.3 b. Find the standard deviation. deaths deaths