Confidence interval of a true mean weight
The average weight of 60 randomly chosen compact automobiles was 2620 pounds. The sample standard deviation was 430 pounds. Determine the 99.5% confidence interval of a true mean weight, m, in pounds, of the automobiles?
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When the aircraft interior is maintained at the sea level pressure, determine the size and direction of the total force acting on a cabin door which is 1.0 meters broad and 2.0 meters high?
Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. Use a significance level of 0.05. r = 0.578,
Assume that in absence of foxes, the rabbit population increases by 15% per year; in absence of rabbits, fox population decreases by 25% per year. Describe why Volterra-Lotka equations are?
A battery having an emf = 9.00 V and an internal resistance of 1.80 ohm is joined to a 295 O resistor. Compute the terminal voltage for the battery.
The space among the plates is filled with a dielectric having a dielectric constant of around 5.6. The capacitor will fail when the electric field surpasses 260 kV/m. Determine the maximum energy which can be stored in the capacitor.
Tank is made for the retention time of two hours. Evaluate amount of flow settling tank can receive without exceeding design capacity.
Three capacitors having capacitances 8.0 µF, 20.0 µF and 23.0 µF are joined in series to a 15.5 Volt battery. Determine the net energy stored in the circuit.
Determine the three lowest frequencies which will not be heard by the listener. Where the listener must be positioned when all frequencies are to be heard? Employ 340m/sec for the velocity of sound.
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