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3 years ago

What does it mean when a researcher states that an observed effect or difference is significant with a confidence level of 99%?

Mathematics

2 answers:

grin007 [14]3 years ago

6 0

Answer:

He is 100% sure but doesnt want to get sued that is why hand sanitizer says 99% instead of 100 but also it looks good for the product

Step-by-step explanation:

icang [17]3 years ago

5 0

Answer:

it affected more than half

Step-by-step explanation:

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stira [4]

Does it say Marcella's age?

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2 years ago

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mash [69]

Answer: OPTION B.

Step-by-step explanation:

Given the following System of equations:

$\left \{ {{3x-5y=19} \atop {x+y=1}} \right.$

You can use the Elimination Method to solve it. The steps are:

1. You can mutliply the second equation by -3.

2. Then you must add the equations.

3. Solve for the variable "y".

Then:

$\left \{ {{3x-5y=19} \atop {-3x-3y=-3}} \right.\\.....................\\-8y=16\\\\y=\frac{16}{-8}\\\\y=-2$

4. Now that you know the value of the variable "y", you must substitute it into any original equation.

5. The final step is to solve for "x" in order to find its value.

Then:

$x+(-2)=1\\\\x=1+2\\\\x=3$

Therefore, the solution is:

$(3,-2)$

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3 years ago

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myrzilka [38]

Answer:

Start at 80(y) go to 10:00(x)

Step-by-step explanation:

Joey's house is the same distance to his friend's house as his friend's house is to his. This means that if the travel at the same rate the rate of change (slope) will be the same. However because the friend is going the opposite direction of joey the rate of change (slope) will have the opposite sign (negative vs positive, down vs up)

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2 years ago

Determine whether the triangles are congruent. Explain your reasoning .

lapo4ka [179]

Yes because of ASA
Angel MLX =angel JLM
JLM =90
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3 years ago

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ikadub [295]

Answer:

Step-by-step explanation:

the variable n would have to be less then zero.. answer 1