Question
A sample of 20 third-grade students had a average of 54 on a math proficiency test, with a sample standard deviation of 11. Is there
A sample of 20 third-grade students had a average of 54 on a math proficiency test, with a sample standard deviation of 11. Is there enough evidence to conclude that the third-grade sample mean differs significantly from the third-grade population mean of 67?
Assume a 0.02 significance level.
Use theCritical ValueMethod of Testing (this means NO P-Values!).Show work
In your work space below, you will need to have -
1.The null hypothesis, Ho (5 points)
2.The alternative hypothesis, H1 (5 points)
3.The test statistic (10 points)
4.The type of test(left, right, two-tailed) and the critical value (9 points)
5.The decision to accept Ho or reject Ho (5 points)
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