Critical value and testing for two independent samples

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Reference no: EM1320953

Find the critical value and testing for two independent samples:

A paired difference experiment produced the following results:

n₀ = 45, x₁ = 155, X₂ = 157, x_d = -2, s_d = 55,

a) Determine the rejection region for the hypothesis Ho : mean D= 0 if H_a: mean D > 0. Use a = 0.01. z>__________

b) Conduct a paired difference test described above. The test statistic is:

Reference no: EM1320953

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