Two Population Means with Unknown Standard Deviations · Exercise 7
Indicate if the hypothesis test is for
It is believed that the average grade on an English essay in a particular school system is higher for females than for males. A random sample of 31 females had a mean score of 82 with a standard deviation of 3, and a random sample of 25 males had a mean score of 76 with a standard deviation of 4.
OpenStax, Statistics · §10.1 Two Population Means with Unknown Standard Deviations · Exercise 7
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