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BartSMP [9]
3 years ago
6

CHEGG Find the F-test statistic to test the claim that the variances of the two populations are equal. Both distributions are no

rmal. The populations are independent. The standard deviation of the first sample is 6.9533 6.2248 is the standard deviation of the second sample.
Mathematics
1 answer:
Drupady [299]3 years ago
4 0

Answer:

The F-test statistic to test the claim that the variances of the two populations are equal is 1.25.

Step-by-step explanation:

For checking the equivalence of 2 population variances of independent samples, we use the <em>F</em>-test.

The hypothesis is,

<em>H</em>₀: \sigma_{1}^{2}=\sigma_{2}^{2} vs. <em>Hₐ</em>: \sigma_{1}^{2}\neq \sigma_{2}^{2}

The test statistic is given as follows:

F=\frac{S_{1}^{2}}{S_{2}^{2}}

It is provided that:

S₁ = 6.9533

S₂ = 6.2248

Compute the test statistic as follows:

F=\frac{S_{1}^{2}}{S_{2}^{2}}

   =\frac{(6.9533)^{2}}{(6.2248)^{2}}\\\\=1.24776\\\\\approx 1.25

Thus, the F-test statistic to test the claim that the variances of the two populations are equal is 1.25.

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soldi70 [24.7K]
The answer is 100X because if you do 5x-4x first it will be 1x. Later on, if you do the exponent you have 1x times 1x. Then you do 1x+9x = 10x

Then you do 10x times 10x because of the exponent is telling you how times you do it and it equals to 100x.

Answer= 100x



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7 0
3 years ago
Am I right?
Yuliya22 [10]
I think this MIGHT be right I’m not sure but yeah
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asambeis [7]

Answer: x = 2

Step-by-step explanation:

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8 0
3 years ago
Jalyn collected 24 stones. She put them in 4 equal piles. How many stones are in each pile?
ZanzabumX [31]

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6

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Suppose that poaching reduces the population of an endangered animal by 6​% per year. Further suppose that when the population o
artcher [175]

If poaching reduces the population of an endangered animal by 6% and the criteria of population extinction is 20 with present population 1500 then it will take 3.62 years to reach to the mark of extinction.

Given Poaching reduces the population of endangered animals by 6% per year. The criteria of population extinction is 20. Present population being 1500.

Number of years taken by the population of endangered animals to reach to 20 mark can be calculated as under:

20=1500*(1-0.06)^{n}

20=1500*0.94^{n}

20/1500=0.94^{n}

0.133=0.94^{n}

take log both sides

log(0.133)=log0.94^{n}-------1

log(0.133)=nlog (0.94)

put the values log values:

log(0.133)=-0.8761

log(0.94)=-0.0268

Taking 1

-0.8761=n*(-0.0268)

n=0.8761/0.0268

n=3.269

Hence to reach level of 20 the population takes 3.2 years.

Learn more about logarithm at brainly.com/question/25710806

#SPJ10

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2 years ago
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