In: Statistics and Probability
This sheet contains data for the monthly returns of the Dow from March 2001 to November 1928 (Source Yahoo!/Finance/^DJI/Historic Data). (A) Run descriptive statistics to calculate the mean and standard deviation. Choose cell D9 for the output range. For the next three questions remember to reference cells when data you need are already calculated. Do not retype the data as this could lead to rounding errors. USING EXCEL FOR ANSWERS
Mean | 0.005563612 |
Standard Error | 0.001761236 |
Median | 0.008674026 |
Mode | #N/A |
Standard Deviation | 0.053854677 |
Sample Variance | 0.002900326 |
Kurtosis | 6.847607233 |
Skewness | -0.113212638 |
Range | 0.664588362 |
Minimum | -0.307008106 |
Maximum | 0.357580256 |
Sum | 5.201977167 |
Count | 935 |
(C) 90% of the time the return on the Dow is less than what amount? (D) 90% of the time the return on the Dow is greater than what amount?
(C). To get Z we have to use =NORM.S.INV(0.9) formula in EXCEL
To get the X value (Need to reference the mean and the standard error cells above appropriately). =B1+F16*B2
B1=mean,F16=the Z value(dine in the previous step) and B2 is the standard error cell reference.
(D). To get Z we have to use =NORM.S.INV(0.1) formula in EXCEL(Note the 0.1 in the NORM function argument here)
To get the X value (Need to reference the mean and the standard error cells above appropriately). =B1+F20*B2