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Marina CMI [18]
3 years ago
14

Brayden tosses a coin 500 times. Of those 500 times, he observes heads a total of 416 times. Calculations show that the probabil

ity of this occurring by chance is less than 0.01, assuming the coin is fair. Determine the meaning of the significance level.
Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
7 0

Answer: The probability of this ocurring by chance is less than 0.01.

The meaning of the significance level is that it tells that there is difference of 1% level when there is no actual difference.

Step-by-step explanation:

Since we have given that

Number of times a coin tossed = 500

Number of times head occurs = 416

So, our Z-score would be

Z_\alpha =\dfrac{416}{500}=0.832

So, At significance level of 0.01, p-value of Z-score is .202704.

and p-value < 0.01, i.e. 0.202704<0.832.

Hence, the probability of this ocurring by chance is less than 0.01.

The meaning of the significance level is that it tells that there is difference of 1% level when there is no actual difference.

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The volume of a rectangular prism with a length of 12 inches, width of 10 inches, and height of 2.5 inches is 300 cubic inches

<h3>Volume of a rectangular prism</h3>
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Volume of a rectangular prism = length × width × height

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1 year ago
Solve the following system of equations. Write each of your answers as a fraction reduced to lowest terms. In other words, write
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Answer:

x = 57/28

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Step-by-step explanation:

Use the application in the next link: https://www.zweigmedia.com/RealWorld/tutorialsf1/scriptpivotold.html

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then using the tool provided, make row operations until you find the solution:

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r2 = r2*(-1/13)

\left[\begin{array}{cccc}1&5&8&1\\0&1&22/13&-2/13\\0&3&18&7\\\end{array}\right]

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r2 = r2- r3*22/13

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Answer:

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Step-by-step explanation:

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Answer:

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