5. An econometrician hypothesises that the average percentage grade achieved by A-levelMathematics students across the UK in 2020 was at most 65%. He tests that Ho:u =65% against H1: u < 65%. Using a random sample of 2000 student grades, he calculates thesample mean to be X = 64.29 and the sample variance to be s? = 4.61. At the 5% level ofsignificance, he decides that students achieved a lower average than 65%. Is this statementtrue or false?O TrueO False

Sample Mean, X¯= 64.29 Sample standard deviation, s = 4.61 = 2.147 Null and Alternative Hypotheses :…

Answered: 5. An econometrician hypothesises that…

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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