The researcher's scientific/alternative hypothesis is:
- Different sources of caffeine leads to differences in women's attentional control performance.
The researcher's null hypothesis is:
- Different sources of caffeine leads to no difference in women's attentional control performance.
The type of sample which the researcher is using is:
A disadvantage to using this sample type is:
The thing which the researcher can conclude about these data is:
- It is conclusive based on the reaction of the women to the independent variables.
If, in the population, women actually show NO difference in attentional control performance after drinking black tea versus coffee, the type of statistical error which the researcher has made is:
<h3>What is a Scientific Hypothesis?</h3>
This refers to the difference between two variables which is discovered during a scientific research and is an observed pattern.
Read more about scientific hypothesis here:
brainly.com/question/896413
I need the whole picture that’s only half
It is 17ft because i know im in high school and the diagram show
Answer:
Optin b is right
Step-by-step explanation:
given that the mean of the sampling distribution for the difference in two sample means is 0.
This means that when two sample means are equal we get difference is 0 and this would be the point estimate of mean for differene of means distribution.
Hence the four options given can be analysed
. the two sample means are both 0. -- False need not be 0 but equal
B. the two sample means are equal to each other. -- True
C. the two population means are both 0. -- False need not be 0
D. the two population means are equal to each oth -- False only sample means are 0 and if sample represents population this may be 0
Answer:
22. 3/8
23. 3/5
24. 0
Step-by-step explanation:
turn the 1 into a fraction for each of the problems.
for 22. it would be 8/8 because also trying to make the denominators the same.
8/8 - 5/8 = 3/8
try 23 and 24 now!
