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In a sample of 38, the mean is x = 86.10 with a standard deviation of s = 7.55. Assuming the results follow a normal distribution, construct the 90% confidence interval for the population mean. The t Table = 1.687. Multiple Choice O 90% confidence interval is 86.10 + 2.07. O 90% confidence interval is 2.07. O 90% confidence interval is between 83.86 and 88.34. O 90% confidence interval is 84.03 + 1.69