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3 years ago

What is the highest common factor of 200 and 240

1 answer:

3 0

Hi,
The fastest way to find the HCF of two numbers is to first prime factorise them,

200: 2*2*2*5*5
240: 2*2*2*2*3*5

Then take the common so; 2*2*2*5
which is 40

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Null hypothesis:H₀:- There is no significant difference between in drug resistance between the two states

Alternative Hypothesis :H₁:

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B)

The calculated value Z = 2.7261 > 2.054 at 0.02 level of significance

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P - value = 0.0066

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Step-by-step explanation:

Step(i):-

Given first sample size n₁ = 174

Suppose that, of 174 cases tested in a certain state, 11 were found to be drug-resistant.

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Step(ii):-

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Alternative Hypothesis :H₁:

There is significant difference between in drug resistance between the two states

Test statistic

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

Where

$P = \frac{n_{1}p_{1} +n_{2} p_{2} }{n_{1} +n_{2} }$

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Step(iii):-

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2 P( Z > 2.7261) = 2 × 0.0033

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