Glaucoma is a leading cause of blindness in a certain country. An ophthalmologist measured the corneal thickness of eight patients who had glaucoma in one eye but not in the other. The data on corneal​ thickness, in​ microns, are shown in the table available below. Use the paired​ t-interval procedure to obtain an 90​% confidence interval for the difference between the mean corneal thickness of normal eyes and that of eyes with glaucoma(Normal−Glaucoma).Interpret the result. The 90​% confidence interval is from____microns to____microns

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