a perfume company claims that the best selling perfume contains at most 25% alcohol. twenty bottles were selected and found to have mean of 29.7% and standard deviation of 4.8%. test the claim of the perfume company at the 0.0& level pf significance. to test the null.hypothesis, the best selling perfume contains at most 25% alcohol.

Question

PsyDAG · Answer

It would help if you proofread your questions before you posted them.

Level of significance?

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 t he Z score.

jingle · Answer

25