Question
A random sample of 54 students from Cabrillo College are selected from a normal population with mu equal to 20 and sigma equal to 5.
A random sample of 54 students from Cabrillo College are selected from a normal population with mu equal to 20 and sigma equal to 5. After a treatment is administered to the students, the researcher calculated the sample mean to be 21. Is there enough evidence to conclude that the treatment had a significant effect at the 5% significance level?
What is the alternative hypothesis?
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Entrepreneurship
Authors: Andrew Zacharakis, William D Bygrave
5th Edition
9781119563099
