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.
The Brooklyn, New York, woman has lived through 20 U.S. presidents, two world wars and the birth of the automobile, the airplane, TV and the Internet. Guinness officially recognized Jones as the oldest recorded person on the planet last month after 116-year-old Jeralean Talley died in suburban Detroit. The oldest living person ever recorded was Jeanne Calment of France, who died in 1997 at 122. Jones attended the Calhoun Colored School in Calhoun, Alabama, where Booker T. Washington was an original member of the school's Board of Trustees, according to the New York City Housing Authority.