Critical value of the standard normal distribution
The upper 0.05 critical value of the standard Normal distribution is
A. 1.645.
B. 1.960.
C. 2.326.
D. 2.576.
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Suppose a population has a mean of 7 for some charactertisic of interest and a standard deviation of 9.6. A sample is drawn from this population of size 64. What is the standard error of the mean?
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