Question
A researcher measured the writing speed of 300 right-handed and 100 left-handed people. The right-handed group had a mean of 100 and a standard deviation
A researcher measured the writing speed of 300 right-handed and 100 left-handed people. The right-handed group had a mean of 100 and a standard deviation of 8 while the left-handed group had a mean of 84 and a standard deviation of 10. Assume the distributions are normal. How many left-handed people wrote faster than the average right-handed person did?
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Basic College Mathematics With Early Integers
Authors: Marvin L Bittinger, Judith A Beecher
3rd Edition
0321922794, 9780321922793
