Video: What is the Margin of Error? Video: When to Use z-test or t-test? For a normal distribution, assume the 'sample' standard deviation is 2. What is the maximal margin of error associated with a 99% confidence interval for the true population mean if n = 31. (Round to two decimal places) ± Question Help: Video Submit Question

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Q: Video: What is the Margin of Error? Video: When to Use z-test or t-test? For a normal distribution,…

A: Given that  Sample size n =31 Sample standard deviation =2 99% confidence.