Question

in order to determine an interval for the mean of a population with unknown standard deviation, a sample of 54 items is selected. the mean of the sample is determined to be 37. what is the associated number of degrees of freedom for reading the t value?

Answer 1

The number of degrees of freedom associated with a sample is typically calculated as the sample size minus 1. In this case, if the sample size is 54, then the number of degrees of freedom would be 54 - 1 = 53. This is the value you would use when looking up the t-value in a t-distribution table for constructing a confidence interval for the population mean when the population standard deviation is unknown.

Explanation: