Do One of the Following, as Appropriate: (A) Find the Critical

question 87

Multiple Choice

Do one of the following, as appropriate: (a) Find the critical value $\mathrm { z } _ { \alpha / 2 }$ , (b) find the critical value $t _ { \alpha / 2 }$ , (c) state that
neither the normal nor the t distribution applies.
- $90 \% ; \mathrm { n } = 10 ; \sigma$ is unknown; population appears to be normally distributed.

• A) \(\mathrm { z } _ { \alpha / 2 } = 1.383\)
• B) \(\mathrm { t } _ { \alpha / 2 } = 1.833\)
• C) \(\mathrm { z } _ { \alpha / 2 } = 2.262\)
• D) \(\mathrm { t } _ { \alpha / 2 } = 1.812\)

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Definitions:

Grignard Compound

A reagent in organic chemistry, typically R-Mg-X, used for forming carbon-carbon bonds.

Carbonyl Compound

Organic compounds that contain a carbonyl group, characterized by a carbon atom double-bonded to an oxygen atom, and including ketones, aldehydes, carboxylic acids, esters, and amides.

3-Hexanol

An organic compound characterized by a six-carbon chain with a hydroxyl group bonded to the third carbon atom.

Benzyl Bromide

An organic compound consisting of a benzene ring bonded to a -CH2Br group, utilized commonly as a reagent in organic synthesis.