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3 years ago

Please answer my question

Mathematics

1 answer:

Aleksandr [31]3 years ago

8 0

Answer:

0.327

Step-by-step explanation:

=> $\frac{\sqrt{2}\sqrt{5} -\sqrt{5} }{2\sqrt{2} }$

Let's put all the givens

=> $\frac{(1.414)(2.236)-(2.236)}{2(1.414)}$

=> $\frac{3.162-2.236}{2.828}$

=> $\frac{0.926}{2.828}$

=> 0.327

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Ellie read an article claiming that 10% of people in her county were senior citizens, and she thought that it may be higher for

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Answer:

The value is $z = 3$

Step-by-step explanation:

From the question we are told that

The population proportion of senior citizens is $p = 0.10$

The sample size is $n = 225$

The number of senior citizens is k = 36

The null hypothesis is $H_o : p = 0.10$

The alternative hypothesis is $H_a : p > 0.10$

Generally the sample proportion is mathematically represented as

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Generally the test statistics is mathematically represented as

$z = \frac{\^{p} - p }{\sqrt{\frac{p(1 -p )}{n} } }$

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3 years ago

The equation of the line with slope = 3, going through point (2, 4) is:

Marina86 [1]

$(\stackrel{x_1}{2}~,~\stackrel{y_1}{4})\hspace{10em} \stackrel{slope}{m} ~=~ -3 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{4}=\stackrel{m}{-3}(x-\stackrel{x_1}{2}) \\\\\\ y-4=-3x+6\implies y=-3x+10$

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2 years ago

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Please answer my question ​

Please answer my question