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Suppose that the amount of money spent per week on groceries is normally distributed with an...

Suppose that the amount of money spent per week on groceries is normally distributed with an unknown mean and standard deviation. A random sample of 20 grocery bills is taken and gives a sample mean of $79 and a sample standard deviation of $13.

Use a calculator to find a 95% confidence interval estimate for the population mean using the Student's t-distribution.

Round your answer to two decimal places

Math   Statistics-And-Probability   
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