Question: We wish to develop a confidence interval for the population mean. The population follows the normal distribution, we know the population standard deviation, and have

We wish to develop a confidence interval for the population mean. The population follows the normal distribution, we know the population standard deviation, and have a sample of 10 observations. We decide to use the 90 percent level of confidence. The appropriate value to represent the level of confidence is

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3. To understand a method for achieving personal communication mastery.

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