3. Which of the following sets of data provides the clearest diffrence between the two samples?

a. One sample has M=20 with s2=10 and the other has M=25 with s2=10

b. One sample has M=20 with s2= 5 and the other has M=25 with s2=5

c. One sample has M=20 with s2=10 and the other has M=30 with s2=10

d. One sample has M=20 with s2= 5 and the other has M=30 with s2=5

a. One sample has M=20 with s2=10 and the other has M=25 with s2=10

b. One sample has M=20 with s2= 5 and the other has M=25 with s2=5

c. One sample has M=20 with s2=10 and the other has M=30 with s2=10

d. One sample has M=20 with s2= 5 and the other has M=30 with s2=5

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