One group of 20 patients is given a drug that is thought to have an effect on kidney function, and another group of 20 patients is given a placebo (i.e., sugar pill, which is known not to have an effect on kidney function).The nuclear medicine gamma camera is used to calculate the glomerular filtration rate (GFR) in these two groups of patients.What would be the proper statistical test to use to test the hypothesis that no difference in GFR exists between these two groups of patients?

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The t-test is used to test for differences between mean values.The two forms of the t-test are for independent samples and paired samples.For independent t-tests, two independent groups of data are used.The two groups are completely independent.No relationship or correlation exists between the two groups, typically because the groups represent different patients.The two groups have mean and standard deviations denoted by 11ea6816_3f24_ffbf_b611_09b28b321045_TB6242_11 , SD₁, 11ea6816_3f24_ffc0_b611_993e9968ac0b_TB6242_11 , and SD₂. 11ea6816_3f24_ffc1_b611_1d29c3668f15_TB6242_00

One Group of 20 Patients Is Given a Drug That