Sample: 15,13,14,12,13,12,13,14,12,12,13,14,10,13,14,10,10,11,11,15
Determine if a 10% increase is big enough to be a significance increase with an alpha of 5%?
Find the null and alternative hypothesis?
Find the critical value in Normal Distribution and Student T Distribution?
Fin the experimental T Value?
Find the experimental value in Normal Distribution?
Step by step please! Thank you!