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Confidence interval for population mean of major test

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Reference no: EM132413702

A high school principal wishes to estimate the mean of a major test that all high school students take. The following data represents the test scores of 14 randomly selected tests. You may assume the population of test scores is normally distributed.

486,499,483,491,478,415,473,398,450,467,421,492,436,496

Find the 95% confidence interval for the population mean of the major test.

Enter the lower and upper bounds for the interval in the following boxes, respectively. Round your answers nearest whole number.

HINT: The TInterval function of the calculator has two input modes: one from Data and one from Stats. If you put your data into L1 and run TInterval from Data, then the calculator will find the mean and standard deviation for you when finding the confidence interval.

Reference no: EM132413702

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