In a population, the average IQ is assumed to be 120. To test this assumption a sample of 16 people is selected from this population. The average IQ of this sample is found to be 114 with a standard deviation of 20. Assuming that the IQ scores of the population are normally distributed, we want to test the claim (alternative hypothesis) that population mean is greater than 120. Find the t-value for this sample.

In a population, the average IQ is assumed to be 120. To test this assumption a sample of 16 people is selected from this population. The average IQ of this sample is found to be 114 with a standard deviation of 20. Assuming that the IQ scores of the population are normally distributed, we want to test the claim (alternative hypothesis) that population mean is greater than 120. Find the t-value for this sample.

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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