Please help! It would be greatly appreciated! In statistics, what does df denote

Question

Please help! It would be greatly appreciated!

In statistics, what does df denote? If a simple random sample of 15 speeds of cars on California Highway 405 is to be used to test the claim that the sample values are from a population with a mean greater than the posted speed limit of 65 mi/h, what is the specific value of df? Choose the correct answer below. O A. df denotes the number of degrees of freedom. For this sample, df 14. O B. df denotes the distribution of freedom. For this sample, df 15 O C. df denotes the distribution of freedom. For this sample, df 14. D. df denotes the number of degrees of freedom. For this sample, df 15

Explanation / Answer

solution:- option A.
A. df denotes the number of degrees of freedom. For this? sample, df= 14

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