Question

Independent random samples, each containing 800 observations, were selected from two binomial populations. The samples from populations 1 and 2 produced 320 and 400 successes, respectively. Find the point estimate of the true difference in population proportions of successes.

Answer 1

The point estimate of the true difference in population proportions of successes is -0.1.

Step-by-step explanation:

To find the point estimate of the true difference in population proportions of successes, we need to calculate the sample proportions for each population. The point estimate is simply the difference between the sample proportions.

For population 1, the sample proportion is 320/800 = 0.4. For population 2, the sample proportion is 400/800 = 0.5. Therefore, the point estimate of the true difference in population proportions of successes is 0.4 - 0.5 = -0.1.