Garrett, a sculptor, has been commissioned to create a statue for a new city building in his hometown. The statue is of the city's founder as a boy. Garrett has created a scale model
of the statue and now needs to calculate the amount of material needed to produce the
full-sized statue. The scale of the model to the full-sized statue is 1:10. The volume of
material used to produce the scale model is 96 cubic inches and its height is 8". Using the
scale factor, find the number of cubic feet of material needed to produce the full-sized
statue.

The weibull distribution is widely used in statistical problems relating to aging of solid insulating materials subjected to aging and stress. use this distribution as a model for time (in hours) to failure of solid insulating specimens subjected to ac voltage. the values of the parameters depend on the voltage and temperature; suppose α = 2.5 and β = 190. (a) what is the probability that a specimen's lifetime is at most 250? less than 250? more than 300? (round your answers to four decimal places.) at most 250 less than 250 more than 300 (b) what is the probability that a specimen's lifetime is between 100 and 250? (round your answer to four decimal places.) (c) what value is such that exactly 50% of all specimens have lifetimes exceeding that value? (round your answer to three decimal places.) hr