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Scorpion4ik [409]
3 years ago
9

I need help with my statistics class. I am doing a 6 step hypothesis and i am stuck on the alternate and null hypothesis. I am d

oing two sets if data. one of the means if 6.6 and the other is 6.5. the standard deviation for both ended up being 3.003. if you need any other information message me. I just really need help with this.
Mathematics
1 answer:
mash [69]3 years ago
8 0

What do you need help with?

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Plzz help ... I'm thinking it's either c or d
iren [92.7K]
Looking at the slope of the "best-fit" line, you can see that for every two hours of homework, 15 more points are scored. (compare t=0 to t=2).

For t=5, the line seems to go through 47.5. So for t=7, which is two hours more, you'd expect a score of 47.5+15 = 62.5. 

That answer is in the list, so I'd choose that.

In reality, you would never be able to have any score you like just by putting more hours in, so this can never be a straight line forever...
5 0
2 years ago
Read 2 more answers
Irina rode her bike to work at an average speed of 16 miles per hour. It started to rain, so she got a ride home along the same
Sedaia [141]

Answer:

0.7 hours

Step-by-step explanation:

Given that Irina was able to make the same distance from work to home in 0.4 of an hour at 27 miles per hour, we can use this rate and time to find the distance she travels to and from work using the general formula:

d = rt, where d=distance, r = rate and t = time

d = 27(0.4) = 10.8 miles

Since the distance from Irina's home to work is 10.8 miles, we can again use the formula 'd = rt' to find the time it takes her to bike to work at a rate of 16 miles per hour and solving for time, 't':

10.8 = (16)t

t = 0.7 hours

3 0
3 years ago
What is the approximate result of converting 20 centimeters into inches? remember that 1inch = 2.54centimeters
marta [7]
20 cm * 1 inch / 2.54 cm = <span> <span> <span> 7.874015748 </span> </span> </span> inches
So the approximate result is 20 cm = 7.9 inches


6 0
3 years ago
Read 2 more answers
Could I have the answer to factorise 16a+12b
Tanzania [10]
Factor out the GCF, which is 4.... 4(4a+3b)
6 0
3 years ago
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Welp im kinda stuck and i just woke up so i cant think lol please help
storchak [24]

Answer:

welp I dunno....

Step-by-step explanation:

BUT I LOVE YOUR DABI PROFILE

5 0
2 years ago
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