0 My Courses n statistics, what does d denote? I a simple random sample of 20 sp

Question

0 My Courses n statistics, what does d denote? I a simple random sample of 20 spoeds of oars on Calfomia Highway 405 is to be used to teet the claim that the sample valuos aro from a pepulation with a mean greafer than the posted speed limit of 85 mih, what is the speciic value of cr? Courso Home Choose the correct answer below Sudy Pian O A d dencles the distribution of freedorn. For this sample, offa 19 OD. ?dences the number of dagrees of freedom. Fortis sample, d.19 O C. d dendltes the distibution of freedom. For this semple, df- 20 OD. d derotes the rumber of dogrss of freedom For th somple f +20 Gradeboo Chapte Contents Toois for Success

Explanation / Answer

solution:- option B.
df denotes the number of degrees of freedom for this sample df = 19
explanation:-
given that n = 20
then df = n - 1 = 20 - 1 = 19

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