Question Help Aused car dealer says that the mean price of a three-year-old sports utility...
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Question Help Aused car dealer says that the mean price of a three-year-old sports utility vehicle is $19,000. You suspect this claim is incorrect and find that a random sample of 20 similar vehicles has a mean price of $19,648 and a standard deviation of $1928. Is there enough evidence to reject the claim at a=0.05? Complete parts (a) through (e) below. Assume the population is normally distributed.
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