Mathematics, 17.04.2021 22:10, maren17

In the hormone replacement studies of menopausal women, doctors rejected the results of the observational study after conducting the experiment. In the experiment they controlled the effects of confounding variables that had probably influenced the results in the observational study. In the experiment the doctors used random assignment to treatment groups, a placebo, and double blinding to control the effects of confounding variables. Which of the following are potential confounding variables? Check all that apply. A. whether a woman took hormones
B. whether a woman in the study had a heart attack
C. wealth
D. access to health care

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 16:30, skye2598

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

Answers: 3

continue

Mathematics, 21.06.2019 17:30, nayellisoto15

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Answers: 1

continue

Mathematics, 21.06.2019 20:00, proutyhaylee

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.

Answers: 1

continue

Mathematics, 21.06.2019 20:30, catcatscats122

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

Answers: 1

continue

Do you know the correct answer?

In the hormone replacement studies of menopausal women, doctors rejected the results of the observat...