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Dafna1 [17]
3 years ago
7

Find the image of (-3,5) reflected across the x-axis

Mathematics
1 answer:
klio [65]3 years ago
7 0

Answer:

(-3,-5)

Step-by-step explanation:

Just flip the points over the X-Axis.

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Answer:

The degrees of freedom first given by:  

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And for this case the rejection region would be:

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Step-by-step explanation:

Information given

5, 7, 4, 6, 7, 5, 5, 6, 4, 4, 7, 5.

System of hypothesis

We want to test if the true mean is higher than 5, the system of hypothesis are :  

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The degrees of freedom first given by:  

df=n-1=12-1=11  

Then we can find the critical value taking in count the degrees of freedom and the alternative hypothesis and then we need to find a critical value who accumulates 0.05 of the area in the right tail and we got:

t_{\alpha}= 1.796

And for this case the rejection region would be:

b) Reject H0 if tcalc >1.7960

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