Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
What level of significance are you using? P = .05? P = .01?
Z = (score-mean)/SEm
SEm = SD/√n
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to your Z score. Is it higher or lower than your significance level?
Exercise :
A machine is set up such that the average content of juice per bottle equals μ . A sample of 36 bottles yeilds an average content of 48.5cl. Test the hypothesis that the average content per bottle is 50cl at the significance level.
Assume that the population standard deviation σ = 5cl
1 answer