Consider the following results for independent samples taken from two population

ID: 3228154 • Letter: C

Question

Consider the following results for independent samples taken from two populations.

Sample 1 Sample 2

n1= 500 n2= 300

p1= 0.41 p2= 0.31

A. What is the point estimate of the difference between the two population proportions (to 2 decimals)?

B) Develop a 90% confidence interval for the difference between the two population proportions (to 4 decimals).

_______ to ____________

c. Develop a 95% confidence interval for the difference between the two population proportions (to 4 decimals).

__________ to __________

A) Point estimate of the difference = p1 - p2 = 0.41 - 0.31 = 0.10

B) From statistical software output,

90% confidence interval:

0.0431 to 0.1569

C) From statistical software output,

95% confidence interval:

0.0322 to 0.1678

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