SOLUTION: A sample of size 7 (n=7) has a mean of m=9. One of the sample scores is changed from x=19 to x=5. What is the value for the new sample mean?
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Question 505298: A sample of size 7 (n=7) has a mean of m=9. One of the sample scores is changed from x=19 to x=5. What is the value for the new sample mean? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A sample of size 7 (n=7) has a mean of m=9. One of the sample scores is changed from x=19 to x=5. What is the value for the new sample mean?
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When the data value is 19:
mean = sum of values / # of value
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9 = sum/7
sum = 7*9 = 63
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When that data value is 5 the sum is 63-14 = 49
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Then mean = 49/7 = 7
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Cheers,
Stan H.
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