Assignment:
Based in this data below find:
Mean: 5.9556 Median: 5.07225 Standard Dev: 2.78
A) Make a Histogram. From the shape of the histogram decide whether you will use the empirical Rule or the Chebyshev's Theorem. Based on the Empirical rule (If the data follows the rule) 95% of the data is within what limits? Based on the Chebyshev's Theorem (if the data follows the rule) 89% of the data is within what limits?
B) Explain whether a large a sample size might be or might not be desirable to construct a confidence of interval for the mean traded volume of shares.
C) Several years ago, a certain company's stock had a mean daily volume of 7.52 million shares, according to a reputable financial news outlet. Does the sample data (as evidence) suggest that the mean traded volume has changed in recent years? Use the level of significance a=0.05. What can be concluded from the hypothesis test?
