Flash Speed Questions

The solution time is much shorter than you think.

) elijah wants to know whether textbook costs are different for different courses of study. he selects a random sample of 33 sociology textbooks offered on a popular online site. the mean price of his sample is $74.64 with a standard deviation of $49.36. he then selects a random sample of 33 math and science textbooks from the same site. the mean price of this sample is $111.56 with a standard deviation of $66.90. is the mean price of a sociology textbook lower than the mean price of a math or science textbook Get the answer
Category: computerinformation | Author: Sagi Boris

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