The service manager of a car dealer wants to determine if owners of new cars (two years old or less)tune up their cars more frequently than owners of older cars (more than two years old).From his records he takes a random sample of ten new cars and ten older cars and determines the number of times the cars were tuned up in the last 12 months.The data follow.Do these data allow the service station owner to infer at the 10% significance level that new car owners tune up their cars more frequently than older car owners?
Definitions:
Uterus
Hollow, muscular organ in which the fertilized ovum develops into a fetus.
Acrosome
A cap-like structure present over the anterior part of a sperm's head, containing enzymes that help sperm penetrate an egg.
Midpiece
A part of the sperm cell that contains mitochondria, providing energy for movement.
Centriole
A small, cylindrical cell structure in the cytoplasm of animal cells, involved in the process of cell division and in the formation of cilia and flagella.
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