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A 90% confidence interval for a proportion is found to be (0.37, 0.43). What is the sample proportion? A. 0.39 O B. 0.40 O C.

A 90% confidence interval for a proportion is found to be (0.37, 0.43). What is the sample proportion? A. 0.39 O B. 0.40 O C. 0.41 O D. 0.43 SUBMIT

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