Question: The following data represent a random sample of 9 marks (out of 10) on a statistics quiz. The marks are normally distributed with a standard

The following data represent a random sample of 9 marks (out of 10) on a statistics quiz. The marks are normally distributed with a standard deviation of 2. Estimate the population mean with 90% confidence.

7 9 7 5 4 8 3 10 9

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