A used car dealer says that the mean price of a​ three-year-old sports utility vehicle is ​$21,000. You suspect this claim is incorrect and find that a random sample of 22 similar vehicles has a mean price of ​$21,753 and a standard deviation of ​$1920. Is there enough evidence to reject the claim at α=0.05​? find standardized test stat, p value, critical values

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Q: Help!!

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Q: The number of chocolate chips in a popular brand of cookie is normally distributed with a mean of 21…

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Q: In a test of the effectiveness of garlic for lowering cholesterol, 49 subjects were treated with raw…

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