- A T Test Two Sample Assuming Unequal Variances Mean Variance Observations Hypothesized Mean Differen Df T Stat P T T 1 (35.42 KiB) Viewed 20 times
US states (see file: obesity).
a. test if the mean obesity in 2000 was different from 50?
b. test if the mean obesity in 2010 was less than 65?
A t-Test: Two-Sample Assuming Unequal Variances Mean Variance Observations Hypothesized Mean Differen df t Stat P(T<=t) one-tail Critical one-tail P(T<t) two-tail Critical two-tail 227 16.292157 21.77451 5.3891373 7.3755373 51 51 0 98 -10.958401 5.1E-19 1.6605512 1.02E-18 1.9844675 2010 has a higher standard deviation than in 2000. 2010 has a higher mean than in 2000. 2010 has a higher variance than in 2000. The minimum and maximum value of 2000 is less than the minimum and maximum value of 2010 B Correlation 2000 1 2010 0.7630949 1 2000 2010 20.5 25.7 17.5 23.4 15.1 19.6 17.8 23.7 14.6 19.2 10.3 16.5 13.4 18.0 17.7 22.4 16.8 20.7 16.7 19.4 11.5 23.5 12.9 17.1 16.9 20.2 17.0 22.0 18.6 24.1 18.7 22.9 13.4 22.8 19.2 24.5 19.7 25.2 16.1 20.7 17.7 19.4 13.1 18.3 18.2 25.4 14.3 22.3 19.8 26.8 19.2 23.2 14.3 18.7 16.3 23.2 15.5 21.6 14.5 17.9 13.5 19.0 14.1 19.8 14.5 20.6 18.1 23.5 18.4 23.4 18.9 23.0 16.8 22.9 16.4 20.3 18.7 24.0 14.3 18.5 18.4 25.8 14.7 212 17.4 24.6 17.2 25.5 13.7 17.5 14.9 18.9 15.9 23.7 15.6 21.3 19.9 27.5 17.1 21.6 15.1 19.5 с The average obesity differs across the two years with the average obesity much higher among people in 2010 as compared to 2000. D The average obesity differs akross the two years with the variance as much higher variance is among people in 2010 as compared to 2000.