Mathematics, 28.11.2020 02:50, laniiawesomee

g A random sample of 71 individuals shows an average income of $53,511 per year. We know from previous research that the standard deviation for income is 23,440. I hypothesize that the true population mean for income is $52,138 per year. What is the z-statistic for this hypothesis

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g A random sample of 71 individuals shows an average income of $53,511 per year. We know from previo...