Don't provide handwritten solution. Data on fifth-grade test scores (reading and mathematics) for 434 school districts in California yield Y =678.5 and standard deviation sy = 20.5.The 95% confidence interval for the mean test score in the population is (676.58, 680.42 ). (Round yourresponses to two decimal places.)When the districts were divided into districts with small classes (<20 students per teacher) and largeclasses (>20 students per teacher), the following results were found:Class SizeStandard Deviation (sy)20.418.8SmallLargeAverage Score (V)690.3682.5n235187Is there statistically significant evidence that the districts with smaller classes have higher averagetest scores?The t-statistic for testing the null hypothesis is(Round your response to two decimal places.)

Let be the population mean for the small class and large class respectively.Given that,

Answered: Is there statistically significant…

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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Is there statistically significant evidence that the districts with smaller classes have higher average test scores? The t-statistic for testing the null hypothesis is (Round your response to two decimal places.)