Find a confidence interval for H or p. a. A random sample of 19 adults participated in a four-month weight loss program. Their mean weight loss was 9.2 lbs, with a standard deviation of 2.5 lbs. Use this sample data to construct a 99% confidence interval for the population mean weight loss for all adults using this four-month program. You may assume the parent population is normally distributed. Round to one decimal place. > l>

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