Considering the situation described, the scientist's null and alternative hypothesis are described by:
Null hypothesis 
; Alternative hypothesis 
.
<h3>What are the hypothesis tested?</h3>
At the null hypothesis, it is tested if there is no difference, that is, the difference of the means represented by 
is of 0, hence:
At the alternative hypothesis, it is tested if there is a difference, hence:
More can be learned about an hypothesis test at brainly.com/question/26454209
1. y = -1/2 + 2.
2. y= 2/5x - 4/5
Answer:
8.92
Step-by-step explanation:
14.52 - 5.6 =
less than means subtract
Answer:
This is late you said it was due 5 min. yet I this was posted 5 hours. No one can help now.
Step-by-step explanation:
First you had to add by twenty-two from both sides of equation form.
Then simplify by equation.
Next, you divide by four from both sides of equation form.
Finally, simplify by equation.
Final answer: 
Hope this helps!
And thank you for posting your question at here on brainly, and have a great day.
-Charlie
