What is the critical value and what does it mean two part question
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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What is the critical value and what does it mean two part question

Transcribed Image Text:The mean IQ for the U.S. is 100 with a standard deviation of 15. A Troy statistics professor thinks Troy
students are smarter than average, so he randomly samples 10 students and records the following IQ data
to test his hypothesis. What conclusion should you make?
IQ: 95 100 105 110 115 100 105 110 105 105
O the data support the claim that Troy students have an IQ greater than 100
O the data do not support the claim that Troy students have an IQ greater than 100
O the data support the null hypothesis
the data fail to support the alternative hypothesis

Transcribed Image Text:The mean IQ for the U.S. is 100 with a standard deviation of 15. A Troy statistics professor thinks Troy
students are smarter than average, so he randomly samples 10 students and records the following IQ data
to test his hypothesis. What is the critical value (CV) for this problem (use .05 level of significance)?
IQ: 95 100 105 110 115 100 105 110 105 105
2.74
1.812
1.833
0.05
2.262
2.228
a
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