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sineoko [7]
3 years ago
7

Find the slope of the line

Mathematics
2 answers:
expeople1 [14]3 years ago
7 0
The slope of the line would be negative one fourth. This is because it is going down one unit which makes it negative and 4 units to the right
Crazy boy [7]3 years ago
6 0
The slope of the line is - 1/4 because y is -1 and x is +4 so this equates to y/x = -1/4
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Step-by-step explanation:

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Hello Brainic!
t45 means the unknown number (t) ×45
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. The National Sleep Foundation surveyed representative samples of adults in six different countries to ask questions about slee
scoundrel [369]

Answer:

Yes the conclusion in the question  is a reasonable conclusion

Step-by-step explanation:

From the question we are told that

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     The sample mean for USA is  \= x_1 =  391 \ minutes

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     The sample standard deviation for USA is  s_1 =  25 \ minutes

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The alternative hypothesis is  H_a  :  \mu_1  < \mu_2

Generally the test statistics is mathematically represented as

        z =  \frac{\= x_1 - \= x_2 }{ \sqrt{ \frac{s_1^2}{n_1} + \frac{s_2^2}{n_2 } } }

=>     z =  \frac{ 391  - 426  }{ \sqrt{ \frac{25^2}{250} + \frac{49^2}{250} } }

=>     z =  -10

From the z table  the area under the normal curve to the left corresponding to   -10  is

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Generally from the value obtained we see that

  The p-value is  <  \alpha  hence

The decision rule is

Reject the null hypothesis

The conclusion is  

 The is sufficient evidence to conclude that adults in the United States get less sleep on work nights than adults in Mexico

Hence the conclusion in the question is a  reasonable conclusion

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Lemur [1.5K]

Answer: (4,2)

Step-by-step explanation:

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