Ariana Davis I 2/26/18 922 PM STA2023 Spring 2018 Session 2 (8 AM) Homework: Hom

Question

Ariana Davis I 2/26/18 922 PM STA2023 Spring 2018 Session 2 (8 AM) Homework: Homework 8.4 - Sigma Known Traditional Method Sve Hw Score: 0%, 0 of 8 pts Save Score: 0 of 1 pt 1 of 70 complete) | 8.4.2 Assigned Media Question Help * In statistics, what does df denote? If a simple random sample of 22 speeds of cars on California Highway 405 is to be used to test the claim that the sample from a population with a mean greater than the posted speed limit of 65 mih, what is the specific value of dr S Choose the correct answer below A. df denotes the distribution of freedom. For this sample, df. 22. O B. df denotes the number of degrees of freedom. For this sample, df-21 O C. df denotes the distribution of freedom For this sample, df-21 O D. df denotes the number of degrees of freedom For this sample,df 22

Explanation / Answer

Solution: option B.df denotes the nuber of degrees of freedom.for this sample,df = 21

=> n = 22

df = n-1 = 22-1=21

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