b. Fifty trials of a simulation were performed to see what differences in proportional would occur.4.
due only to chance variation in the random assignment, assuming that the type of bill doesn't
matter. The results are shown in the dotplot.
-0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4
Simulated difference in sample proportion of
people who claimed the bill as their own
There are three dots at 0.4. Explain what these dots mean in this context.
The 3 dots at 0.4 means
9
c. Use the results of the simulation to determine if the difference in proportions from part (a)
statistically significant. Explain your reasoning.
Because the diffrence of 0.4