Answer:
The 95% confidence interval for difference between population proportion is (-0.0194, -0.0006).
Step-by-step explanation:
The confidence interval for difference in population proportion formula is,
The given information is:
n₁ = 11508
X₁ = 921
n₂ = 4967
X₂ = 452.
Compute the sample proportion values as follows:
The critical value of <em>z</em> for 95% confidence interval is:
*Use the standard normal table.
Compute the 95% confidence interval for difference between proportions as follows:
Thus, the 95% confidence interval for difference between population proportion is (-0.0194, -0.0006).