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Komok [63]
3 years ago
15

The length and the breadth of a rectangular piece of land are 500m and 300m respectively. Find it’s area

Mathematics
2 answers:
garik1379 [7]3 years ago
8 0
It’s area would be 150000m because area is LxW so (500x300)
katrin [286]3 years ago
6 0
Area of a rectangle = Length x Breadth
The required area = 500 x 300
= 150000 m^2
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A random sample of 87 eighth grade students’ scores on a national mathematics assessment
Finger [1]

There is not enough evidence to support the administrator’s claim and the true mean is not significantly greater than 280.

<h3>What is a statistical hypothesis?</h3>

A hypothesis to test the given parameters requires that we determine if the mean score of the eighth graders is more than 283, thus:

The null hypothesis:

\mathbf{H_o \leq 283}

The alternative hypothesis:

\mathbf{H_i > 283}

From the population deviation, the Z test for the true mean can be computed as:

\mathbf{Z = \dfrac{\hat X - \mu _o}{\dfrac{\sigma}{\sqrt{n}}}}

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Note that, since we are carrying out a right-tailed test, the p-value for the test statistics is expressed as follows:

P(z > 0.756)

P = 0.225

Since the P-value is greater than the significance level at α = 0.14, we can conclude that there is not enough evidence to support the administrator’s claim and the true mean is not significantly greater than 280.

Learn more about hypothesis testing here:
brainly.com/question/16251072

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1 year ago
Kyle has three pieces of ribbon. One is 2/5 inches long, another is 5/10 inches long, and the last one is 1/3 inches long. What
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lol you've asked like 10 probability questions in 20 minutes i wonder what chapter you're studying

Step-by-step explanation:

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Read 2 more answers
Can someone help me plzzzzzz
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Big rectangle
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Small rectangle
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Big-small= 2x^2+8x-22 is the area of the shaded region
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3 years ago
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