According to a National Survey,the Average Commuting Time for People

question 57

Essay

According to a national survey,the average commuting time for people who commute to a city with a population of 1 to 3 million is 19.0 minutes.Suppose a researcher lives in a city with a population of 2.4 million and wants to test this claim in her city.Taking a random sample of 20 commuters,she calculates a mean time of 19.346 minutes and a standard deviation of 2.842 minutes.Calculate the appropriate test statistic to test the hypotheses.

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Definitions:

Heterozygous

Genetic condition of having two different alleles at a locus on a chromosome.

Hybrid

A heterozygous individual.

Purebred

An animal bred from parents of the same breed or variety, showing traits and characteristics consistent with the breed's standard.

Cystic Fibrosis

A genetic disorder that affects the respiratory, digestive, and reproductive systems, characterized by the production of abnormally thick and sticky mucus, leading to severe respiratory and digestive problems.