Mathematics, 25.11.2021 06:20 ambinicole66
scores on a certain test are normally distributed with a standard deviation of 70. A researcher wishes to estimate the mean score achieved by all adults on the test. Find the sample size needed to assure with 95 precent confidence that the sample mean will not differ from the population mean by more than 2.5 units
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scores on a certain test are normally distributed with a standard deviation of 70. A researcher wish...
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