The Sample Size Needed to Estimate a Population Mean to Within

question 31

Multiple Choice

The sample size needed to estimate a population mean to within 10 units was found to be 68.If the population standard deviation was 50,then the confidence level used was:

• A)99%
• B)95%
• C)90%
• D)None of these choices.

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Definitions:

Plasmids

Small, circular DNA molecules found in bacteria and some other cells, independent of the chromosomes, often carrying genes beneficial for survival.

Genetic Information

The hereditary information encoded in DNA or, in the case of some viruses, RNA, which determines the biological development and function of an organism.

mRNA

Messenger RNA, a type of RNA that carries the genetic information from DNA in the nucleus to the cytoplasm, where it serves as a template for protein synthesis.

Translated

The process by which the sequence of a messenger RNA (mRNA) molecule is used by the ribosome to assemble amino acids into a polypeptide.