For the following hypothesis test: With n = 80, σ = 9, and = 47.1, state the calculated value of the test statistic z.
A) 3.151
B) -2.141
C) 2.087
D) -3.121

Name: For the following hypothesis test: With n = 80, σ = 9, and = 47.1, state the calculated value of the test statistic z. A) 3.151 B) -2.141 C) 2.087 D) -3.121
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Question

Quizplus · Accepted Answer

The test statistic z is calculated using the formula z = (x̄ - μ) / (σ/√n). Given n = 80, σ = 9, and x̄ = 47.1, the correct calculation leads to z = 2.087.

For the Following Hypothesis Test: with N = 80, σ