The single-sample t-test compares the mean of the sample to a given number (which you supply). The dependent-sample t-test compares the difference in the means from the two variables to a given number (usually 0), while taking into account the fact that the scores are not independent.The independent samples t-test compares the difference in the means from the two groups to a given value (usually 0).he single sample t-test tests the null hypothesis that the population mean is equal to the given number specified using the option H0=. In our example, the t-value for variable write is 4.14 with 199 degrees of freedom.
Vermont had the second-highest median age, at 42.3 years. New Hampshire was third, with a median age of 42. Utah was the youngest state, with a median age of 29.9 years. Officials say among Maine counties, Lincoln is the oldest with a median age of 49.4 years. Androscoggin County was the youngest, at 40.5 years.
In all but four states, the age of majority is 18 years; in Alaska and Nebraska, the age of majority is 19 years, and in Pennsylvania and Mississippi the age of majority is 21 years. Although the age of majority in Mississippi is 21 years, this state does allow an 18 year old to provide consent for his or her own health care. Laws that affect the minor's right to consent to medical care have been developed under the precedent of parental autonomy.