2) A researcher used a developed problem-solving test to randomly select 50 Grade 6pupils wherein X = 80 and s = 10. The mean ju and the standard deviation of thepopulation used in the standardization of the test were 75 and 15, respectively. Usethe 95% confidence level to answer.

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Answered: 2) A researcher used a developed…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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2) A researcher used a developed problem-solving test to randomly select 50 Grade 6 pupils wherein X = 80 and s = 10. The mean ji and the standard deviation of the population used in the standardization of the test were 75 and 15, respectively. Use the 95% confidence level to answer.