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Anna [14]
3 years ago
10

In a​ one-way ANOVA, what does it mean to reject the statement in the null hypothesis if three treatment groups are being​ compa

red?
Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
4 0

Answer:

This means we reject that all the three groups have same means.

Step-by-step explanation:

given that in a one-way ANOVA, we reject the statement in the null hypothesis if three treatment groups are being​ compared

In anova one way we compare the means of more than two groups.

The hypotheses are set up as

H0: Means of all three groups are equal against

Ha: atleast two means are different

When we find out F statistic by dividing SST by MST

we get p value.

Whenever p is less than significant level, we reject null hypothesis

This means we reject that all the three groups have same means.

Then we can go further to check up which pair is different by doing Tukey test or pairwise t test.

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earnstyle [38]

I always feel drawn to the number 2 for some reason because it is in the middle between 2 and four and usually when given an option to pick a number I never pick a number that they say. Personally I just feel drawn to pick the number 2 its a nice even number and perhaps could be lucky :)

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3 years ago
Amanda, Boris, and Jose sent a total of 124 text messages during the weekend. Amanda sent 8 fewer messages than Jose
GrogVix [38]

Answer:

Amanda= 14

Boris = 88

Jose= 22

Step-by-step explanation:

Amanda= jose-8

Boris = 4×jose

Jose= Jose

total all = 124

(jose-8)+(jose×4)+(jose)= 124

so we substitute jose with X .

(X-8)+(4X)+(X)=124

6X-8= 124.

6X=124+8

X=132/6

X= 22.

so that total jose is 22, minus 8 we get Amanda, times 4 we get Boris.

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2 years ago
Polygon ABCDE is an irregular pentagon. Find the perimeter of the polygon. Round to the nearest tenth. Round to give final answe
Ad libitum [116K]

Answer:

12.9

Step-by-step explanation:

AB = \sqrt{2^{2}+3^{2}  } = \sqrt{13}

BC = \sqrt{2^{2}+2^{2}  } = 2\sqrt{2}

CD = \sqrt{1^{2}+2^{2}  } = \sqrt{5}

DE = 3

EA = \sqrt{1^{2} + 2^{2} } = \sqrt{5}

The sum of all of these (in decimal form) is (approx.) 12.9

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3 years ago
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It's a good idea to get into the habit of using <u>parentheses</u> when substituting numbers in for variables.

Since <em>a = -3</em> and <em>x = 3</em>, 5a - x is 5(-3) - (3).

5(-3) is -15 and we have (-15) - 3 which simplifies to -18.

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