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If a 95% confidence interval for the difference between two sample proportions is (0.345, 0.789), what...

If a 95% confidence interval for the difference between two sample proportions is (0.345, 0.789), what is the 90% confidence interval?

Select one:

a. (0.304, 0.830)

b. (0.253, 0.881)

c. (0.381, 0.753)

d. (0.367, 0.767)

e. (0.275, 0.859)

Math   Statistics-And-Probability   
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