need a lab for elementary statistics
I will attach a file of all the problems and questions. It is going to be a written assignment. I will attach the problems separate from the worksheet and all you have to do is follow the instructions with the corresponding numbers. I made it a little easy and labeled all the problems to the corresponding numbers on the actual lab
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12a. Less than 17mins; Ῡ=20mins, δ=5mins
Z = (Ῡ – µ) / δ
(20-17) / 5 = 0.6=Z
Z from normal tables = 0.7257
Probability selected athlete uses for less than 17 minutes = 0.7257Ans
12b. Between 20 and 28 minutes
Z = (Ῡ – µ) / δ = (20-20) / 5 = 0 = Z . Z from normal tables = 0.5, therefore, 1-0.5 = 0.5;
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