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gtnhenbr [62]
3 years ago
10

What does the number line above represent?

Mathematics
1 answer:
sattari [20]3 years ago
8 0
It is the last one. A closed circle means less than or equal to, so that crosses out the top two. The third says five is greater and we know that is not true because the line is decreasing in value. It must be the fourth.
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The expense of the visit to dental specialist is equivalent to (50+100n)

Step-by-step explanation:

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A mattress store is having a sale all mattresses are 30% of. Nate wants to know the sale price of a mattress that is regularly $
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Step-by-step explanation:

<em>Step(I)</em>:-

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second sample proportion

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Step(ii):-

Null hypothesis : H₀ : There is no difference  proportion of positive tests among men is different from the proportion of positive tests among women

Alternative Hypothesis:-

There is difference between proportion of positive tests among men is different from the proportion of positive tests among women

 

Z = \frac{p_{1}- p_{2} }{\sqrt{PQ(\frac{1}{n_{1} }+\frac{1}{n_{2} }  } }

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Z= \frac{0.9230-0.9038}{\sqrt{0.920 X0.08(\frac{1}{390}+\frac{1}{52}  } )}

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Level of significance = 0.10

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Test statistic Z=0.13008 < 1.645 at 0.1 level of significance

Null hypothesis is accepted

There is no difference proportion of positive tests among men is different from the proportion of positive tests among women







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