Question

Use a= .05 and two tailed test

t=- 2.00, df = infinty symbol. reject, fail to reject

Step 1

Given α = 0.05, degree of freedom= ∞, t = -2.00 .

When the degree of freedom is infinite then we say that the distribution is normal distribution and t score is nothing but the Z score. So Z score = -2. It is a two tail test.

For a two tail test if test statisti...

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