Please provide solutions so I can double check against my answers. Thank you

A high variation in the speed at which cars travel on the interstate can lead to unsafe driving condi- tions. When some cars are traveling at high speeds and others are traveling at low speeds on the same stretch of highway, the likelihood of an accident increases. Suppose the state of Virginia believes that a standard deviation of more than 7 miles per hour between cars results in an unsafe driving condition, The following speeds, in miles per hour, were clocked on an interstate in Virginia The data can also be found in the Excel file interstate speeds.xlex, 83 77 56 79 59 59 66 69 65 77 60 ZO 69 73 Using a - 0.05, test whether an unsafe driving condition exists on this interstate. b. Interpret the p-value. QUESTION 1 Chapter problem 13.17 Using a - 0.05 to test whether an unsafe driving condition exists on this interstate, what conclusion we can draw? O There is not enough evidence to conclude that the standard deviation of ine driving speeds of cars in the state of Virginia is greater than 7 miles and it resulting in unsafe driving condition. O There is enough evidence to conclude that the standard deviation of the driving speeds of cars in the state of Virginia is greater than 7 miles and it resulting in unsafe driving condition. Not enough information O None of above QUESTION 2 Chapter problem 13.17 To test whether an unsafe driving condition exists on this interstate, what is degree of freedom of the test QUESTION 3 Chapter problem 13.17 Using a - 0.05, what is the critical value of the test? QUESTION 4 Chapter Problem 13.17 To test whether an unsafe driving condition exists on this interstate. what is the correct hypothesis? O Ho:027 H1:049 QUESTION 5 Chapter problem 13.17 To test whether an unsafe driving condition exists on this interstate, what is the test statistic? O 30.2 28.94 27,06