A car company claims that the mean gas mileage for its luxury sedan is at least 23 miles per gallon (mpg). Believing this claim to be incorrect, you find that a random sample of 8 cars has a mean gas mileage of 21 mpg and a standard deviation of 4 mpg. With a significance level of α = 0.025, test the company's claim by assuming 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.****Select the correct hypothesis test:**- \( \text{A: } H_0: \mu \ge 23, \quad H_1: \mu < 23 \)- \( \text{B: } H_0: \mu \le 23, \quad H_1: \mu > 23 \)- \( \text{C: } H_0: \mu = 23, \quad H_1: \mu \ne 23 \)- \( \text{D: } H_0: \mu \ne 23, \quad H_1: \mu = 23 \)**What is the value of the standardized test statistic?**The standardized test statistic is \( -1.41 \). (Round to two decimal places as needed.)**What is the critical value?**The critical value is \( \_\_\_ \). (Round to three decimal places as needed.)

The degrees of freedom is, df=n-1=8-1=7 The degrees of freedom is 7. The level of significance is…

Answered: What is the critical value? The…

Math

Statistics

What is the critical value? The critical value is (Round to three decimal places as needed.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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