StatisticsdrillChi-square 2 x 2: p-value and decision
A statistics problem from Statisticsdrill. Solve it with one answer box, with a fresh sample on every attempt and the worked steps and spreadsheet function in the answer, and it is checked the moment you submit.
The task
An HR team checks whether remote work and promotion are related. Remote: promoted 21, not promoted 26. On site: promoted 118, not promoted 90. Find the p-value of the chi-square test of independence (no continuity correction), then decide at α = 0.05. Round to 4 decimal places.
What this problem teaches
Compute χ² from expected counts, then the upper tail area with df = (2 - 1)(2 - 1) = 1.
A hint if you get stuck
Compute χ² from expected counts, then the upper tail area with df = (2 - 1)(2 - 1) = 1.
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