Mathematics, 06.05.2020 04:17 kate5582
A researcher wants to compare the effect of a new type of shampoo on hair condition. The researcher believes that men and women may react to the shampoo differently. Additionally, the researcher believes that the shampoo will react differently on hair that is dyed. The subjects are split into four groups: men who dye their hair; men who do not dye their hair; women who dye their hair; women who do not dye their hair. Subjects in each group are randomly assigned to the new shampoo and the old shampoo. This experiment:
A. has two factors (gender and whether hair is dyed) blocked by shampoo type
B. has one factor (shampoo type), blocked by gender and whether hair is dyed
C. has two factors (shampoo type and whether hair is dyed) blocked by gender
D. is completely randomized
E. has three factors (shampoo type, gender, whether hair is dyed).
Answers: 2
Mathematics, 21.06.2019 15:00
Consider the diagram. which line segment has the same measure as st? rx tx sr xs
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Mathematics, 21.06.2019 22:30
At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?
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