roblem 1. A medical researcher is testing a new drug to see if it slows the growth of malignant tumors in rats. The control group of 40 rats is given none of the drug and the test group of 40 rats is given a dose every day for 2 weeks. At the end of the test, the following statistics were calculated: Control Rats Test Rats Average Growth of Tumor Standard Deviation 6.2 grams 3.1 grams 4.1 grams 2.8 grams Test if the new drug appears to slow the mean rate of tumor growth at a significance level of a = 0.05. Assume the mean rates of tumor growth in both situations are normally distributed. %3D

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