Asked by Help Please?
In a random sample of 30 tires of the same type, it is found that the average life span of a tire is 36,200 miles with a standard deviation of 3,800 miles. Find the standard error of the mean.
a 126.67
b 693.78
c 9.53
d 587.24
a 126.67
b 693.78
c 9.53
d 587.24
Answers
Answered by
PsyDAG
SEm = SD/√n
√30 = 5.48
√30 = 5.48
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