The study hypothesized that pregnant women who exercise during their pregnancies would score lower on the center for epidemiologic studies depression scale (ces-d) than sedentary pregnant women. what type of hypothesis is this

The correct answer is an alternative directional hypothesis.

An alternative hypothesis refers to a hypothesis in which a distinction or an influence among the two or more variables is predicted by the researchers, that is, the observed pattern of the data is not because of a chance occurrence.

An alternative directional hypothesis signifies the direction of the tested association, suggesting that one variable is determined to be smaller or larger than the null value, but not both.

i am going to guess that it is co2.

the real answer is b. scintillation counter