You want to calculate a 90% confidence interval for the population mean. The population appears to be very skewed. A sample is randomly chosen with n = 9 and a sample standard deviation of 4.2. Determine the correct critical value. Explain your answer.
Added by Denise N.
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If the absolute value of your test statistic is greater than the critical value, you can declare statistical significance and reject the null hypothesis. Second, we need to consider the sample size and the shape of the population distribution. In this case, the Show more…
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