Asked by mike

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.

Answers

Answered by mike
helpp
Answered by PsyDAG
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?
Answered by PsyDAG (oops)
Sorry, my goof.

Z = (score-mean)/SD

Z = (.25-.297)/.048
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