Answer:
The explanatory variable in the Yale study is <u>which medication a subject was given.</u>
<u />
Explanation:
The response variable in a study is the focus of the question of that study. In this particular case, what the study aims to know is whether a subject was able to stay off cocaine. The explanatory variable is the one that may or may not influence the response variable. In this case, what might influence the subjects is the medication given to him/her.
Answer:
Option A
Explanation:
The complete question is
Consider a researcher who is conducting final clinical trials to validate that a new treatment for anxiety is effective. This researcher is extremely focused on avoiding mistakes in concluding that this new treatment is effective when it really is not when conducting their research. What should this researcher do?
a. set a low alpha level
b. set a high alpha level
c. set a low sample mean
d. set a high sample mean
Solution
Option A
While carrying out multiple tests, alpha levels are set at low value. In this way value of alpha also reduces. The lower is the value of alpha, the lower will the chances of rejecting a null hypothesis. The chances of type II error increases, which makes it difficult to reject the null hypothesis
Null hypothesis in this case is "New treatment is effective"
As it was faster for going places and transporting goods
Sorry no the best
1700- the land was not very explored yet. There was a permanent mission in Baja California (today Mexico) but nothern California was claimed by Spanish, but not too explored yet.
1821- that's when Mexico had it, it's Mexico's independence year!
1846- In june and July- the California Republic!
1850- from September 9th it belonged to the States.
