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Assuming x is normally distributed, use the following information to compute a 90% confidence interval to estimate . 313 320 319 340 325 310 321

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Assuming x is normally distributed, use the following information to compute a 90% confidence interval to estimate . 313 320 319 340 325 310 321 329 317 311 307 318 What is the lower value of the confidence interval? (Round the answers to 2 decimal places, e.g. 0.75.)

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