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onsider the following results for independent samples taken from two populations. Sample 1 Sample 2 n1...

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

Sample 1 Sample 2
n1 = 500 n2= 300
p1= 0.48 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). Use z-table.
to

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

math   Statistics-And-Probability   
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