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den301095 [7]
3 years ago
5

Refer to the following conditional statement: If a and b are odd integers, then a • b is an odd integer. Which shows the hypothe

sis? A. a and b are not odd integers B. a • b is not an odd integer C. a and b are odd integers D. a • b is an odd integer
Mathematics
1 answer:
sineoko [7]3 years ago
5 0
A is not part of the problem, and it's what makes the condition false.  B is the opposite of the statement being proved.  C is the condition, not the hypothesis.  However, D is the statement we are trying to prove, or the hypothesis.
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Does the amount of hazardous material absorbed by the bodies of hazardous waste workers depend on gender? The level of lead in t
Eva8 [605]

Answer:

Correct option is (A).

Step-by-step explanation:

A two-sample <em>t</em>-test can be performed to determine whether the amount of hazardous material absorbed by the bodies of hazardous waste workers depend on gender or not.

Th hypothesis will be:

<em>H₀</em>: The amount absorbed by men is same as the amount absorbed by women, i.e. <em>μ</em>₁ = <em>μ</em>₂.

<em>Hₐ</em>: The amount absorbed by men is greater than the amount absorbed by women, i.e. <em>μ</em>₁ > <em>μ</em>₂.

The test statistic used is:

t=\frac{\bar x_{1}-\bar x_{2}-(\mu_{1}-\mu_{2})}{\sqrt{\frac{s_{1}^{2}}{n_{1}}+\frac{s_{2}^{2}}{n_{2}}}}

The decision rule to reject the null hypothesis based on the <em>p</em>-value is:

If the <em>p</em>-value of the test is less than the significance level <em>α</em> then the null hypothesis will be rejected. And if the <em>p</em>-value of the test is greater than the significance level <em>α</em> then the null hypothesis will not be rejected.

The <em>p</em>-value of the test is,

<em>p </em>- value = 0.0032

The commonly used significance levels are:

<em>α</em> = 0.01, 0.05 and 0.10.

The <em>p</em>-value of this test is less than all these <em>α</em>'s.

Thus, the null hypothesis will be rejected.

<u>Conclusion:</u>

As the null hypothesis is rejected, it can be concluded that the amount of leas absorbed by men is significantly greater than the amount absorbed by women.

Thus, the correct option is (A).

4 0
3 years ago
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KiRa [710]

Answer:

R&S

Step-by-step explanation:

8 0
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Ratling [72]

Answer:

No does not contain the same length

Step-by-step explanation:

Given that

A(-4,2) , B (1,4), C (2, -1)

Now

AB would be

= \sqrt{(1-(-4))^2 + (4-2)^2} \\\\= \sqrt{29}

And, BC is

= \sqrt{(2-1)^2 + 1-(-4))^2} \\\\= \sqrt{26}

As we can see that the AB and BC are not equaled

So,

AB ≠ BC

Due to the different length

Therefore they do not contains the same length

We simply applied the distance formula due to which the length could be determined and the same is to be considered

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3 years ago
Cut 9ft piece into 12inch &amp; Every cut remove 1/8 inch
melamori03 [73]
So each foot is 12 inches so to remove 8 feet to get 12 in you need to remove 8 times 12 inches total or 96 in and each cut removes 1/8 in so times 96 by 8 and get 768 total cuts
6 0
3 years ago
Please help as soon as you can
dolphi86 [110]

Answer:

I KNOW I HAD IT BEFORE ITS C

Step-by-step explanation:

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