I believe the answer is 9.
Answer: 2 independent sample test of proportions
Step-by-step explanation:
The teo independent sample test of proportion is also referred to as the two proportion z-test and it simply allows the researcher to compare the two proportions in order to ascertain if they're the same or not.
In this case, the null hypothesis will be that that the proportions given in the research are the same while the alternate hypothesis will be that there is a difference between the proportions given.
Answer:
12.5
Step-by-step explanation:
4+21=25
25/2=12.5
Answer:3.50
Step-by-step explanation:
because
