The data manager for a state political party gathered data to determine how many citizens would support the party's senate candidate. He polled citizens in 30 similarly sized senate districts and found a sample mean of 70,438 citizens. Statewide data shows that the population standard deviation is 645.3. What is the approximate 90% confidence interval for this situation? O A. 70,134 and 70,742 O B. 70,207 and 70,669 OC. 70,403 and 70,473 OD. 70,244 and 70,632

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