Assume that a sample is used to estimate a population mean μμ. Find the 95% confidence interval for a sample of size 777 with a mean of 30.6 and a standard deviation of 19.6. Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). _______< μμ < ________ Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.
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From the t-table, the critical value for a 95% confidence level and 776 degrees of freedom is approximately 1.963. ** Show more…
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