Answer:
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Step-by-step explanation:
The value of t obtained is 4.76
Given,
Mean of group 1,
= 10
Mean of group 2,
= 12
= 5
= 8
Number of individuals per group, n = 6
The degrees of freedom are calculated as:
= ( 8-1) + (8-1) = 7 + 7 = 14
The difference between sample means
is:
=
= 10 - 12 = 2
Here n is equal for both groups which is = 8
Now,
The standard deviation of sample 1 :

The standard deviation of sample 2 :

Now, we have to calculate the standard error for the difference of the means.
MSE = 
= 
= 
MSE = 0.7237
Then, the standard error can be calculated as:

Now we can calculate t :

Learn more about standard deviation here : brainly.com/question/16403666
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Answer:
B
Step-by-step explanation:
Sine is opposite/hypotenuse. Sine C would be 5/13 so option B is correct.
The square root of 50 is 7.071
Answer:
y=2x+3
Step-by-step explanation:
2x+4=9-y
2x+4-9=-y
2x-3=-y
y=2x+3