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zaharov [31]
3 years ago
14

Consider the following confidence interval interpretation: We are 98% confident that the true mean laptop screen size is between

19.2 and 21.4 inches. Is this interpretation of a confidence interval correct or incorrect
Mathematics
1 answer:
GalinKa [24]3 years ago
7 0

Answer:

Incorrect

Step-by-step explanation:

This interpretation is incorrect because it states that 98% of the data is with in the confidence interval.

or 98% of the laptop have screen size between 19.2 and 21.4 inches

However, the interpretation would have been correct if it would have stated as - Value of the population mean i.e mean size of the laptop screen lies within the confidence interval.

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Step-by-step explanation:

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Determine the length of PN and the value of y
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Side PN=26

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Step-by-step explanation:

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A triangle has side lengths 2.83 m, 4 m, and 2.24 m. The angles measures are 45°, 63°, and 72°.
vagabundo [1.1K]

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  • D) acute scalene

Step-by-step explanation:

<h3>What are the definitions?</h3>

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7 0
2 years ago
Quadratic formula to find the zeros <br> b^2-4b+4=0
Lunna [17]

Answer:

Step-by-step explanation:

Remark

I don't think you need the quadratic formula for this equation. It just factors into (b - 2)(b - 2), but I'll do it because you requested it.

Formula

\text{x = }\dfrac{ -b \pm \sqrt{b^{2} - 4ac } }{2a}

Givens

a = 1

b = - 4

c = 4

Solution

x = - - 4 +/- sqrt((-4^2) - 4*1*4)

       ====================

                   2*1

x = 4 +/- sqrt (16 - 16)

          ==========

              2

x = 4/2

x = 2

There are 2 roots but both of them are the same. Some teachers say there is only 1 root. I'm in that group.

5 0
2 years ago
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