What Is the First Step to Solving X ² $-$

question 46

Multiple Choice

What is the first step to solving x ² $-$ 10 x = 56 by completing the square?

• A)Add 25 to both sides.
• B)Add -25 to both sides
• C)Subtract 56 from both sides.
• D)Isolate x ² .
• E)none of these

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Definitions:

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis; it defines the boundary for the region of rejection.

Power

The probability that a statistical test will correctly reject a false null hypothesis, effectively detecting an actual effect.

Type II Error

The mistake of failing to reject a false null hypothesis, also known as a "false negative" finding.

Dependent-Samples T-Test

A statistical test used to compare the means of two related groups, indicating if any difference between them is statistically significant.