<h2>
Answer: d.) <u><em>
y=4x+16</em></u></h2>
Step-by-step explanation: <em>Let's solve for y.</em>
<em>−4x+y=16</em>
<em>Step 1: Add 4x to both sides.</em>
<em>−4x+y+4x=16+4x</em>
<em>y=4x+16</em>
The correct answer is
X= 4
Please give brainliest :))
Considering the situation described, we have that:
- The appropriate null hypotheses is
.
- The appropriate alternative hypotheses is
.
<h3>What are the hypotheses tested?</h3>
At the null hypotheses, it is tested if the mean has not been reduced, that is, it still is of 5.2 hours, hence:
.
At the alternative hypothesis, it is tested if the mean has been reduced, that is, it is now of less than 5.2 hours, hence:

More can be learned about hypotheses tests at brainly.com/question/26454209
Answer:
I believe it is true. So sorry if it's not.