Confidence interval for the mean bill
A random sample of 25 lunch orders at Noodles and Company showed a mean bill of 10.36 with a asample standard deviation of 5.31$. FInd the 95% confidence interval for the mean bill of the lunch orders.
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Vinegar is a solution ofacetic acid, CH3COOH, dissolved in water. A 5.54-gsample of vinegar was neutralized by 30.10 mL of 0.100 M NaOH. What is the percent by weight of acetic acid in the vinegar?
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