We can use the separate variances 2-sample t-test. 2-Sample (Independent Samples) t-Procedure Using Separate Variances to Do Inferences for Two-Population Means (Very Different Standard Deviations for the Two Samples). Note: The formulas are provided in the following for your reference only.hen one wants to estimate the difference between two population means from independent samples, then one will use a t-interval. If the sample variances are not very different, one can use the pooled 2-sample t-interval. the degrees of freedom of t is n1 + n2 - 2. Step 1. Find with df = n 1 + n 2 - 2. Step 2.
Wyoming is the smallest state in population, per the census of 2000. Rhode Island ranks 43rd...in other words, seven states are smaller. Source(s): http://www.census.gov/population/cen2000...
The country with the lowest population density is Greenland (as of 2009) with just 0.067 persons per square mile. (0.027 per square kilometer). Even considered as part of Denmark, the combined population density would still be among the world's five lowest.aiwan, officially known as the Republic of China, has the second  lowest population, but the highest population density in East Asia.  It is smaller than the combined size â¦ of the states of Delaware and  Maryland with an estimated population of 23,373,517, mostly on the  island of Taiwan.