Question

In the population of typical college students, µ = 75 on a statistics final exam (σx = 6.4) .For 25 students who studied statistics using a new technique,
X = 72.1. Using two tails of the sampling distribution and the .05 criterion:
(a) What is the critical value?
(b) Is this sample in the region of rejection?
How do you know?
(c) Should we conclude that the sample represents the population of typical students?
(d) Why?


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  • CreatedSeptember 22, 2015
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