hndcap86581 hndcap86581

23-01-2024
Mathematics

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Given a hypothesized mean = 7.5, the sample mean = 8.5, s= 2, n=670, what is the z -value that we may use to test the null hypothesis [hint: provide only the calculated z value here as your answer]? a) 2.5
b) 5.0
c) 10.0
d) 15.0

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