SOLUTION: A sample of n = 10 scores has a mean of M = 7. One score in sample is changed from X = 21 to X = 11. What is the value of the new sample mean?
The new sample mean is
.
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-> SOLUTION: A sample of n = 10 scores has a mean of M = 7. One score in sample is changed from X = 21 to X = 11. What is the value of the new sample mean?
The new sample mean is
.
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Question 1200282: A sample of n = 10 scores has a mean of M = 7. One score in sample is changed from X = 21 to X = 11. What is the value of the new sample mean?
The new sample mean is
. Answer by ikleyn(52851) (Show Source):
You can put this solution on YOUR website! .
A sample of n = 10 scores has a mean of M = 7. One score in sample is changed
from X = 21 to X = 11. What is the value of the new sample mean?
The new sample mean is
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The sum of scores of the original sample is 7*10 = 70.
After the change, the sum of scores of the updated sample is 70 - 21 + 11 = 60.
New sample mean is = 6. ANSWER
