Test a normal population mean - official syllabus scenario
Read the official-HL feature being tested first. A training dataset normal population has known \(\sigma=8\). Test statistic data are \(\bar x=54\), \(\mu_0=52\), and \(n=49\). Calculate z. Enter the requested value and choose the interpretation that matches the result.
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Worked practice: result and interpretation
Calculate the requested result first, then choose the interpretation that follows from it.