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Test the given problem using independent sample t -test.

A school district wants to determine if the girls are equal to boys in test scores. They took a random sample of 22 8th grade girls and 24 8th grade boys. The district looked at recent CAT scores and found the mean score for girls to be xbar1 = 25 and the mean score for boys to be xbar2 = 26. The standard deviation for the girls is s1 = 2.2 and for the boys the standard deviation is s2 = 3.4. Is the school district correct in assumed the girls are equal in performance to boys? They are 95 percent sure their assumption is correct.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921700

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