A car company says that the mean gas mileage for its luxury sedan is at least 25 miles per gallon (mpg). You believe the
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A car company says that the mean gas mileage for its luxury sedan is at least 25 miles per gallon (mpg). You believe the
company says that the mean gas mileage for its luxury sedan is at least 25 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of 5 cars has a mean gas mileage of 24 mpg and a standard deviation of 4 mpg. At a = 0.10, test the company's claim. Assume the population is normally distributed. Click here to view the t-distribution table. Click here to view page 1 of the normal table. Click here to view page 2 of the normal table. UA. M₂: μ725 H₂:μ=25 OC. Ho: μ = 25 H₂: μ#25 What is the value of the standardized test statistic? B. Ho: μ²25 H₂: μ<25 O D. H₂: μ≤25 H₂:μ>25 The standardized test statistic is -0.56. (Round to two decimal places as needed.) What is the critical value? The critical value is (Round to three decimal places as needed.)
A car