Answer:
There is statistical evidence at 95% level to claim that students attend more than 2 classes per quarter
Step-by-step explanation:
Given that one instructor believes that students take more than 2 classes per quarter on average. Let X be the no of classes students take.
(Right tailed test at 5% significance level)
Mean difference = 
Std error = 
Test statistic t = mean diff/std error = 1.84
p value =0.039
Since p <0.05, we reject null hypothesis.
There is statistical evidence at 95% level to claim that students attend more than 2 classes per quarter
Answer:
(7,7)
Step-by-step explanation:
The answer is B I took the test and got it right!!!
Well, I have an example that might help:
Rico's MP3 player holds songs of three different genres: grindcore, zydeco, and kuduro. There are <span>55</span> times as many grindcore tracks as there are zydeco tracks, and there are <span>77</span> times as many kuduro tracks as there are zydeco tracks. Let <span>xx</span> represent the number of zydeco tracks. Write an expression for the total number of tracks on the MP3 player, and simplify it.
Multiply the number of zydeco tracks by <span>55</span> to get the number of grindcore tracks.
<span><span>5x</span><span>5x</span></span>
Multiply the number of zydeco tracks by <span>77</span> to get the number of kuduro tracks.
<span><span>7x</span><span>7x</span></span>
Add up the numbers of all the tracks.
<span><span>x+5x+7x</span><span>x+5x+7x</span></span>
Simplify using the distributive property.
<span><span><span>=(1+5+7)x</span><span>=13x</span></span><span><span>=(1+5+7)x</span><span>=13x</span></span></span>
So, Rico's MP3 player holds <span><span>13x</span><span>13x</span></span> tracks.
I hope I helped you!
Answer:
i dont really know for sure, but try P (-8, 6) Q (-5, 2) and R (2, 1) sorry if its wrong
Step-by-step explanation:
