The following time series shows the number of units of a particular product sold over the past six months. MonthUnits Sold (Thousands)
18
23
34
45
512
610
a. Compute a 3-month moving average (centered) for the above time series.

b. Compute the mean square error (MSE) for the 3-month moving average.

c. Use alpha = 0.2 to compute the exponential smoothing values for the time series.

Fluids at rest possess no flow energy. a)- true b)- false

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.