Mathematics, 02.03.2020 21:07, Svetakotok

Each year, all final year students take a mathematics exam. It is hypothesized that the population mean score for this test is 85. It is known that the population standard deviation of test scores is 11. A random sample of 30 students take the exam. The mean score for this group is 100.
Calculate the 95% confidence interval for the population mean test score. Give your answers to 2 decimal places.

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Each year, all final year students take a mathematics exam. It is hypothesized that the population m...