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Find the standardized test statistic to test the claim that μ1 ≠ μ2. Assume the two...

Find the standardized test statistic to test the claim that μ1 ≠ μ2. Assume the two samples are random and independent. Population statistics: σ1 = 0.76 and σ2 = 0.51 Sample statistics: x1 = 3.6, n1 = 51 and x2 = 4, n2 = 38

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Answer #1

Solution:

The standardized test statistic is

z =   12 11 of ni 2 2 + 12

= (3.6 - 4)/\sqrt{}[(0.76 2/51) + (0.512/38)]

= -2.9674

Answer :

The standardized test statistic is =   -2.9674 = -2.967 =   -2.97

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