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You wish to test the claim that μ ≠ 14 at a level of significance of...

You wish to test the claim that μ ≠ 14 at a level of significance of α = 0.05 and are given sample statistics n = 36 and x̅ = 13.5. Assume the population standard deviation is 2.7. Compute the value of the standardized test statistic. Round your answer to two decimal places.

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Answer #1

Test statistics

z = \bar{x } - \mu / (\sigma / sqrt(n) )

= 13.5 - 14 / (2.7 / sqrt(36) )

= -1.11

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