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7.1-2 Using t=2 and Equation 7.1, calculate approximate 95 percent upper and lower confidence limits for following a. n=40, mean =32, S.E. =1.23 b. n=40,

7.1-2 Using t=2 and Equation 7.1, calculate approximate 95 percent upper and lower confidence limits for following

a. n=40, mean =32, S.E. =1.23

b. n=40, mean =32, S.E. =3.23

c. n=140, mean =32, S.E. =1.23

d. n=140, mean =32, S.E. =3.23

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