Imagine a researcher wants to examine the effects of yoga on stress. she collects data on stress at three different time points – before starting yoga, after 2 weeks of daily yoga, and after 4 weeks of daily yoga. which statistical test is most appropriate?

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?