Suppose a Math test is given to 120 randomly selected third-grade students in New Jersey. The sample average score, Y, on the test is 58 points, and the sample variance, s. is 11 points. Find the critical values for the null hypothesis that the true population mean is equal to 55 at the level of significance a 7%. Would you reject or not reject the mull hypothesis?

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Suppose a Math test is given to 120 randomly selected third-grade students
in New Jersey. The sample average score, Y, on the test is 58 points, and
the sample variance, s. is 11 points.
Find the critical values for the null hypothesis that the true population
mean is equal to 55 at the level of significance a 7%. Would you reject or
not reject the mull hypothesis?
Transcribed Image Text:Suppose a Math test is given to 120 randomly selected third-grade students in New Jersey. The sample average score, Y, on the test is 58 points, and the sample variance, s. is 11 points. Find the critical values for the null hypothesis that the true population mean is equal to 55 at the level of significance a 7%. Would you reject or not reject the mull hypothesis?
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