8.4.2 Question Help n statistics, what does df denote? If a simple random sample

Question

8.4.2 Question Help n statistics, what does df denote? If a simple random sample of 23 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. 0 A, O B. ° C. O D. df denotes the number of degrees of freedom. For this sample, df-23 d denotes the number of degrees of freedom. For this sample, df= 22. df denotes the distribution of freedom. For this sample, df-23. df denotes the distribution of freedom. For this sample, df- 22.

Explanation / Answer

Ans:

df denotes the number of degree of freedom and df=n-1=23-1=22

So,for this sample df=22

Option B is correct.

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