If Two Random Samples of Sizes 30 and 36 Are $\bar { X } _ { 1 }$

question 76

Multiple Choice

If two random samples of sizes 30 and 36 are selected independently from two populations with means 78 and 85,and standard deviations 12 and 15,respectively,then the standard error of the difference $\bar { X } _ { 1 }$ and $\bar { X } _ { 2 }$ is equal to:

• A) 0.904
• B) 3.324
• C) 3.391
• D) 0.833

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Definitions:

Synthesized

Produced artificially by chemical or biological processes.

Anabolism

The metabolic pathways that construct molecules from smaller units, involving energy storage.

Nucleotide

The basic building block of nucleic acids like DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Monosaccharide

Simple sugar carbohydrate that cannot form any simpler sugar by hydrolysis.