A.
Two negatives form a positive,
+5 ≠ -5
Hey there! I'm happy to help!
The domain is all of the x-values of a relation and the range is all of the y-values. When you write them out, you order the numbers from least to greatest and put it in brackets.
The domain of our relation is the x-values of these points, which are 11, 9, 7, and 5. The domain is {5,7,9,11}.
The range is the y-values, which are 1, 2, 3, and 4. So, the range is {1,2,3,4}.
Now you can find the domain and range given a few ordered pairs!
Have a wonderful day!
Answer: The critical value for a two-tailed t-test = 2.056
The critical value for a one-tailed t-test = 1.706
Step-by-step explanation:
Given : Degree of freedom : df= 26
Significance level : ![\alpha=0.05](https://tex.z-dn.net/?f=%5Calpha%3D0.05)
Using student's t distribution table , the critical value for a two-tailed t-test will be :-
![t_{\alpha/2, df}=t_{0.025,26}=2.056](https://tex.z-dn.net/?f=t_%7B%5Calpha%2F2%2C%20df%7D%3Dt_%7B0.025%2C26%7D%3D2.056)
The critical value for a two-tailed t-test = 2.056
Again, Using student's t distribution table , the critical value for a one-tailed t-test will be :-
![t_{\alpha, df}=t_{0.05,26}=1.706](https://tex.z-dn.net/?f=t_%7B%5Calpha%2C%20df%7D%3Dt_%7B0.05%2C26%7D%3D1.706)
The critical value for a one-tailed t-test = 1.706
Had to look for the options and here is my answer.
Starting from the 1950s, both robberies and air pollution has increased and the conclusion that we can say regarding this increase is NOT JUSTIFIABLE. It is not justifiable because population is a different variable and they are not directly related to each other. Hope this helps.