The following is a set of hypotheses, some information from one or more samples, and a standard error from a randomization distribution. test h0 : p=0.28 vs ha : p< 0.28 when the sample has n=800, and p^=0.217 with se=0.01. find the value of the standardized z-test statistic. round your answer to two decimal places.

For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.

Prove the equivalence between the two statements of the 2nd law of thermodynamics (i. e., a violation of one statement leads to the violatio the other statement)

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.