A perfume company claims that the best selling perfume contains at most 25%
alcohol. Twenty (20) bottles were selected and found to have a mean of 29.7% and
standard deviation of 4.8%. Test the claim of the perfume company at the 0.05
level of significance.
3 answers
helpp
Z = .297 - .25/.048
Look up the Z score in a table in the back of your statistics text. How does it compare to .05?
Look up the Z score in a table in the back of your statistics text. How does it compare to .05?
Sorry, my goof.
Z = (score-mean)/SD
Z = (.25-.297)/.048
Z = (score-mean)/SD
Z = (.25-.297)/.048
2 answers