Because the population standard deviation is not known, we use the t-table6 / 6 pointsCompute a 95% confidence interval for the population mean, basedon the sample numbers 21, 28, 33, 34, 25, 26, and 135.What is the Critical value? (Get 4 decimal digits).Use the table here:Distribution TablesQuestion options:
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Hide FeedbackT with 6 degrees of freedom. It is a 2-tail test, so we split the .05 rejection region to two and use 0.0256 / 6 pointsCompute a 95% confidence interval for the population mean, basedon the sample numbers 21, 28, 33, 34, 25, 26, and 135.What is the margin of error? (Round to two decimal digits)
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