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Business, 18.11.2019 21:31 glogaming16

Suppose that the average weekly wage for mothers just off welfare in the united states is $300. a random sample of 60 welfare mothers is given an assertiveness training class. one year later their average earnings are $330 with s=$85. do these data provide sufficient evidence at the 5% significance level to infer that assertiveness training is effective in welfare mothers negotiate better wages?

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Suppose that the average weekly wage for mothers just off welfare in the united states is $300. a ra...
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