Consider two independent random samples with the following results:
n1=493
x1=96
n2=307
x2=288
Use this data to find the 90% confidence interval for the true difference between the population proportions.
1: Find the point estimate that should be used in constructing the confidence interval. Round the answer 3 decimal points Step
2: Find the margin of error. Round answer to 6 decimal places Step
3: Construct the 90% confidence interval. Round answer 3 decimal places
The statistic software output for this problem is:
1) Point estimate = -0.743
2) Margin of error = 0.037044
3) The 90% CI :.706341+.780428
(-0.780 , -0.706)
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