The population mean for an IQ test is 100 and the population standard deviation is 15. You collect data from 25 students and record an average of 105. Is this enough evidence that your students are smarter than average? Test this question at an alpha of 0.05. What are the null and alternative hypotheses? What is the critical Z value (from the table) that we’ll use to compare our calculated
The population mean for an IQ test is 100 and the population standard deviation is 15. You collect data from 25 students and record an average of 105. Is this enough evidence that your students are smarter than average? Test this question at an alpha of 0.05. What are the null and alternative hypotheses? What is the critical Z value (from the table) that we’ll use to compare our calculated
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 23PFA
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The population mean for an IQ test is 100 and the population standard deviation is 15. You collect data from 25 students and record an average of 105. Is this enough evidence that your students are smarter than average? Test this question at an alpha of 0.05.
- What are the null and alternative hypotheses?
- What is the critical Z value (from the table) that we’ll use to compare our calculated Z to?
- What is the obtained Z value (from our calculation)?
- What can we conclude?
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