Question

A new papaya soap manufacturer claims that 80% of women who used the soap observed skin

whitening within two weeks. One of their competitors makes a survey of the claim is true.

The survey results in 6 out of 10 women observed skin whitening within two weeks. With 5%

level of significance, is the soap manufacturer’s claim true?

Ho:

Ha:

Do a ________________ - test at α =

D.R. Reject Ho if

Computations:

Decision: Since

Conclusion: At α = , we can conclude that​

Answer 1

Answer:

: A new papaya soap manufacturer claims that 80% of women who used the soap observed skin whitening within two weeks. One of their competitors makes a survey of the claim is true. The survey results in 6 out of 10 women observed skin whitening within two weeks. With 5% level of significance, is the soap manufacturers claim true? Ho: Ha: Do a ________________ - test at α = D.R. Reject Ho if Computations: Decision: Science Conclusion: At α = , we can conclude that