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QUESTION 1 Evaluate the formula for the test statistic t when x = 2.567, n= 400, u =3 and s =0.535. QUESTION 2 Evaluate the

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QUESTION 1 Evaluate the formula for the test statistic t when x = 2.567, n= 400, u =3 and s =0.535. QUESTION 2 Evaluate the formula for the margin of error for u when / = 2.588, s=0.535, and n = 400. N QUESTION 3 Calculate the minimum sample size needed for a study when p =0.62, z , = 1.96 and E=0.05. 2 QUESTION 4 Evaluate the formula for the margin of error for population proportion. when z , = 1.96, p=0.72 and n = 300

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