Mathematics, 16.11.2019 00:31 katlyn10289
Aresearcher believes that women today weigh less than in previous years. to investigate this belief, she randomly samples 41 women and records their weights. the scores have a mean of 111 lbs and a standard deviation of 12.4. a local census indicated that an earlier population has a mean weight of 115 lbs.
using an alpha of 0.01 one tail, the critical value of the appropriate statistic for testing the null hypothesis is:
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