A Study Was Recently Done in the United States in Which

question 55

True/False

A study was recently done in the United States in which car owners were asked to indicate whether their most recent car purchase was a U.S.car,a German car,or a Japanese car.The people in the survey were divided by geographic region in the United States.The following data were recorded. Given this situation,to test whether the car origin is independent of the geographical location of the buyer,the sum of the expected cell frequencies will equal 1,240.

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Definitions:

Accumulated Degree Hours

A measure used in forensic entomology to estimate the post-mortem interval by calculating the cumulative amount of thermal energy.

Larva

The immature, wingless, and often wormlike feeding stage of an insect, before it undergoes transformation into its adult form.

Develop

To bring out the capabilities or possibilities of something; to make more intricate or evolve, especially over time.

Accumulated Degree Hours

A measure used in forensic entomology to estimate the age of a maggot in a corpse, based on the accumulation of hourly temperatures above a threshold.