SEATWORK: In 2014, the variance of the scores in the National Achievement Test for science was 9.61. A sample of 30 students was chosen from the grade 10 students who took the same test in 2015 and their scores gave a variance of 7.84. At a = 0.01, test the hypothesis that the variance of the scores in the 2015 NAT for science is less than 9.61.

SEATWORK: In 2014, the variance of the scores in the National Achievement Test for science was 9.61. A sample of 30 students was chosen from the grade 10 students who took the same test in 2015 and their scores gave a variance of 7.84. At a = 0.01, test the hypothesis that the variance of the scores in the 2015 NAT for science is less than 9.61.

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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Topic: HYPOTHESIS TEST CONCERNING VARIANCES

SEATWORK:
In 2014, the variance of the scores in the National Achievement Test
for science was 9.61. A sample of 30 students was chosen from the
grade 10 students who took the same test in 2015 and their scores
gave a variance of 7.84. At a = 0.01, test the hypothesis that the
variance of the scores in the 2015 NAT for science is less than 9.61.

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