For a Sample 1000 Twitter Users, Tele-Market Research Reports an Average

question 49

Multiple Choice

For a sample 1000 Twitter users, Tele-Market Research reports an average age of 39.If the population standard deviation is 9.5 years, what would be the upper bound for an 80% confidence interval estimate of the mean age of all Twitter users?

• A)42.37
• B)39.38
• C)41.30
• D)39.62
• E)43.13

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Definitions:

Apoenzyme

The protein component of an enzyme, to which a coenzyme or cofactor must bind to form an active enzyme.

Nonpolypeptide

Referring to molecules that are not composed of peptide bonds and amino acid chains, contrary to proteins.

Coenzyme

An organic non-protein molecule that binds with an enzyme to catalyze a reaction.

Enzyme Activity

The measure of the amount of substrate converted to product by an enzyme in a given time, crucial for biochemical processes.