|
Consider the following sample:
a. Calculate the mean and standard deviation for this data.
b. Determine the percentage of data values that fall in each of the following intervals:
± s, ± 2s, ± 3s.
c. Compare these with the percentages that should be expected from a bell-shaped distribution. Does it seem plausible that these data came from a bell-shaped population? Explain. |
| New search. (Also 1294 free access solutions) |