Question: =+: m . 20 based on a sample of 15 observations gave t 5 3.2. What conclusion is appropriate at each of the following significance

=+: m . 20 based on a sample of 15 observations gave t 5 3.2. What conclusion is appropriate at each of the following significance levels?

a. a 5 .05

c. a 5 .001

b. a 5 .01

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