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7.2-7. Can you show the steps to the solution?

7.2-7. Can you show the steps to the solution?
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Dear Student Please find... View the full answer


a) Degrees of freedom, df = n – 1 = 20 – 1 = 19
Using t­tables, the critical value is
t (0.05,19) = ­1.729
b) Test statistics
t = (X­bar ­ µ)/ (s/√n) = (46.94 – 47)/...

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