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Q1. A simple random sample of 37 observations is derived from a normally distributed population with a population standard deviation of 6.4. (Round your answers to 2 decimal places if needed) a. Is the condition that x is normally distributed satisfied? b. Compute the margin of error with 99% confidence. c. Compute the margin of error with 95% confidence. d. Compute the width of the 99% confidence interval. e. Compute the width of the 95% confidence interval