4 The formula used to calculate a confidence interval for the mean of a normal population is x t critical value What is the

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4 The formula used to calculate a confidence interval for the mean of a normal population is x t critical value What is the appropriate t critical value for each of the following confidence levels and sample sizes Round your answers to two decimal places a 90 confidence n 16 USE SALT b 90 confidence n 23 c 95 confidence n 11 vn Need Help Read It Submit Answer

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