Standard deviation of the sample
The variance of a sample of 81 observations equals 64. The standard deviation of the sample equals
Choose one answer.
a. 4096
b. 6561
c. 8
d. 9
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Assume that a random sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the given statistics and confidence level. n=500, x=400, 95% confidence
Describing Data: Measures of Central Tendency Using the above data, calculate the following statistics using the frequency distribution table, not the raw data:
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The president is uncertain whether a 12 percent or a 16 percent required return is appropriate. Explain why, in the present circumstance, spending a great deal of time to determine the correct required return may not be necessary?
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