Population has a standard deviation
A population has a standard deviation of 50. A random sample of 100 items from this population is selected. The sample mean is determined to be 600. At 95% confidence, the margin of error is:
a. 5
b. 9.8
c. 650
d. 609.8
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As the number of degrees of freedom for a t distribution increases, the difference between the t distribution and the standard normal distribution
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