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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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Gnesinka [82]
C. 1/root2

Based on the information, the hypotenuse will be 6root2 because it is a 45, 45, 90 triangle. The two legs will be 6. Using SOH CAH TOA, we know that for cosine, it will be adjacent/hypotenuse. The adjacent side is 6 and the hypotenuse is 6root2. The result will be (6)/(6root2). After simplifying, we get
1/root2.
3 0
2 years ago
A phone company offers two monthly plans. Plan A costs $17 plus an additional $0.09 for each minute of calls. Plan B costs $22 p
Varvara68 [4.7K]

Answer: $53

Step-by-step explanation:

17+ .09m = 9 + .11m

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9+.11(400) = 9+ 44 = $53 when they cost the same

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3 years ago
Mike and his dad are retiling his bathroom floor. They have budgeted $200 for the tiles and supplies. The tiles cost $1.85 each
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Answer:

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Step-by-step explanation:

First, subtract 114.90 from both sides to get 1.85<em>x</em> = 85.10.

Divide 85.10 by 1.85 to get 46, which is the answer.

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The answer would be idk
So it 5.6
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Answer:

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Step-by-step explanation:

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