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In order to evaluate the performance of a certain brand of alkaline battery, researchers at a consumer testing organization took a random sample of 152 new 1.5 volt AA batteries. Each of the batteries was subjected to the same pattern of discharge, which was designed to simulate typical moderate use. A battery's lifetime was obtained as the time for the output to drop to 0.9 volt. The mean lifetime of these 152 batteries was 46.7 hours and the standard deviation was 13.3 hours. The industry standard for lifetime of such batteries is 45 hours.
(a) Using a 0.06 level of significance what kind of evidence do these data give that this brand of battery has mean lifetime that exceeds the industry standard?
(b) What is the P-value of the above testing procedure?
(c) What is the general meaning of the P-value of a hypothesis testing procedure?
The motor driven by a switch-mode dc-dc converter, which has a bus voltage of 200V. The switching frequency fs = 25 kHz. Calculate and plot the waveforms for va(t), ea(t), ia(t), and id(t) under the following conditions
A 5-volt intelligence amplitude causes the frequency to change to ± 25 kHz. What will be the carrier frequency variation corresponding to an intelligence amplitude of 10 volts
The ALU required for this lab accepts two 4-bit inputs (A0 - A3, B0 - B3), a 3-bit function selection code (F0 - F2) and outputs a 5-bit result (S0 - S4). Since the function selection uses 3-bits, there are 8 different functions.
What assumptions would need to be satisfied for the implementation of Bayes Classifier, Euclidean, Mahalanobis, Parzen windows, Gaussian probability density function, Maximum likelihood parameters estimation of Gaussian pdfs, Naïve Bayes, Guassian..
Design a PLC program and prepare a typical I/O connection diagram and ladder logic program for the following motor control specifications:1) A motor must be started and stopped from any one of three start/stop pushbotton stations.
We have an amplifier with a 1 MHz bandwidth and a 20 mV input signal. The input noise = 1 mV, output signal 6.0 mV, and output noise = 1 mV. Find: (a) SNR at the input (b) ..
A thin conducting wire of length 3w forms a planar equilateral triangle. A Direct current I flows in the wire. Find the magnetic flux density at the center of that triangle.
The input, Vin, is differential not single-ended. Design an analog circuit with a transfer function of Vout = 50 Vin + 2.5 powered by a single +5 V supply. You may use any of the analog chips.
Design a synchronous sequential circuit with one input line and one output line that recognizes the input string x = 1111. The circuit is also required to recognize overlapping sequence such that if the input string is x = 1101111111010
What are the distinguishing features of the response in the pass-band? What are the distinguishing features of the response in the stop-band? What is an all pass filter?
Three point charges are positioned in the x-y plant as follows: 5 nC at y=5 cm, -10 nC at y=-5 cm, and 15 nC at x=-5 cm. Find the required x-y coordinates of a 20 nC fourth charge that will produce a zero electric field at the origin.
Design a load resistor (resistance rating and power rating) network to have the transformer operate at full load. Design a second network for half load. You may need to combine several resistors to get the desired value.
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