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.
More evidence of Calment's lifespan has been produced than for any other supercentenarian; her case serves as an archetype in the methodology for verifying the ages of the world's oldest people. As women live longer then men, combined records for both sexes are dominated by women. The longest undisputed lifespan for a man is that of Jiroemon Kimura of Japan (1897â2013), who died at age 116 years, 54 days. He was also the world's oldest living person from December 2012 until his death. Since the death of 116-year-old Jeralean Talley of the United States on 17 June 2015, Susannah Mushatt Jones also of the United States, born 6 July 1899, is the oldest living person in the world whose age can be documented.