Two Airlines Are Being Compared with Respect to the Time

question 65

Multiple Choice

Two airlines are being compared with respect to the time it takes them to turn a plane around from the time it lands until it takes off again.The study is interested in determining whether there is a difference in the variability between the two airlines.They wish to conduct the hypothesis test using an alpha = 0.02.If random samples of 20 flights are selected from each airline,what is the appropriate F critical value?

• A)3.027
• B)2.938
• C)2.168
• D)2.124

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Definitions:

Minimal Media

A type of growth medium containing only the minimal necessities for the growth of wild-type microorganisms (such as bacteria).

Complete Medium

A culture medium that contains all the nutrients needed for the growth and proliferation of a wide range of microorganisms.

Mutant Strains

Variants of organisms, typically microorganisms, that have undergone mutations distinguishing them from the parent strain.

Anticodon

A sequence of three nucleotides forming a unit of genetic code in a transfer RNA molecule, corresponding to a complementary codon in messenger RNA.