Mathematics, 27.03.2020 00:29 gamelaza431
An insurance agent says that the mean cost of insuring a two-year old sedan (in good condition) is less than $1200. A random sample of 7 similar insurance quotes has a mean cost of $1125, and a standard deviation of $55. Is there enough evidence to support the agent's claim at 0.10? Assume the population is normally distributed.
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