Find the Critical Value $z _ { \alpha / 2 }$

question 40

Multiple Choice

Find the critical value $z _ { \alpha / 2 }$ that corresponds to a 91% confidence level.

• A) 1.34
• B) 1.645
• C) 1.70
• D) 1.75

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Definitions:

Inequality

A mathematical statement that shows the relationship of non-equality between two values or expressions.

Real Number Line

A line that represents all possible real numbers in a continuous sequence, with positive numbers to the right of zero and negative numbers to the left.

Inequality

A mathematical statement that compares two expressions using symbols to indicate that one is larger, smaller, or different from the other.

Compounded Annually

The process of calculating interest on both the initial principal and the accumulated interest from previous periods, applied once per year.