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tangare [24]
3 years ago
10

A chi-square test for homogeneity was conducted to investigate whether the four high schools in a school district have different

absentee rates for each of four grade levels. The chi-square test statistic and p -value of the test were 19.02 and 0.025, respectively. Which of the following is the correct interpretation of the p -value in the context of the test?
Mathematics
2 answers:
pentagon [3]3 years ago
8 0

Answer:

Assuming that each high school has the same absentee rate for each grade level, there is a 2.5 percent chance of finding a test statistic 19.02 or larger

Step-by-step explanation:

Just took the test and it was the right answer

bogdanovich [222]3 years ago
3 0

Answer:

Option B. Assuming that each high school has the same absentee rate for each grade level, there is a 2.5 percent chance of finding a test statistic 19.02 or larger

Step-by-step explanation:

Since p value is probability of getting the sample statistic as or more extreme given null hypothesis is true

(feel free to leave a thanks and/or 5 star rating)

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Answer:

The product represent the number 3\times 0.3=0.9

Step-by-step explanation:

To find : The decimal 0.3 represents What type of number best describes 0.9, which is 3.0.3?

Solution :

0.3 represents 0.3=\frac{3}{10}

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If we multiply 0.3 by 3 we get 0.9

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3\times 0.3=\frac{9}{10}

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3 years ago
a radioactive sample contains 3.00 g of pure 11c, which has a half-life of 20.4 min. (a) how many moles of 11c are present initi
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The number of mole of pure 11C (carbon-11) initially present is 0.2727 mole

<h3>Description of mole </h3>

The mole of a substance is related to it's mass and molar mass according to the following equation

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With the above formula, we can obtain the number of mole of pure 11C. Detail below:

<h3>How to determine the mole of 11C</h3>

From the question given, the following data were obtained:

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Mole = mass / molar mass

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Therefore, the number of mole of pure 11C initially present is 0.2727 mole

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brainly.com/question/13314627

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