College Statistics Quiz
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ESTIMATION AND CONFIDENCE INTERVALS
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A researcher calculates a 95% confidence interval for the mean height of a plant species based on a sample of 20 plants. The interval is (30 cm, 38 cm). Later, it is discovered that one plant's height was recorded as 5 cm, but it should have been 25 cm. All other data points were between 28 cm and 40 cm. How will correcting this single data entry error affect the confidence interval?
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