Question

In: Statistics and Probability

Resistors are electronic components that limit the flow of electrons through a circuit. The electrical resistance...

Resistors are electronic components that limit the flow of electrons through a circuit. The electrical resistance of a resistor is measured in Ohms. A certain type of resistor is advertised to have an average resistance of 100 Ohms. A sample of 20 resistors is selected and gives a mean resistance of 102.4 Ohms and sample standard deviation of ? = 5.1 Ohms. Assuming resistance is Normally distributed, is there evidence to suggest the average resistance of this type of resistor is not 100 Ohms. Answer this question by performing the appropriate hypothesis test using an alpha-level of 0.05.

Solutions

Expert Solution

Solution :

See the t-critical 2.093 in the "two tailed"=0.05 and df:19


Related Solutions

1.) Resistors are electronic components that limit the flow of electrons through a circuit. The electrical...
1.) Resistors are electronic components that limit the flow of electrons through a circuit. The electrical resistance of a resistor is measured in Ohms. A certain type of resistor is advertised to have an average resistance of 100 Ohms. A sample of 20 resistors is selected and gives a mean resistance of 102.4 Ohms and sample standard deviation of ? = 5.1 Ohms. Assuming resistance is Normally distributed, is there evidence to suggest the average resistance of this type of...
4.81e+20 electrons pass through a point in an electrical circuit every 4.96 seconds. (a) 2080 C...
4.81e+20 electrons pass through a point in an electrical circuit every 4.96 seconds. (a) 2080 C of charge pass through that point in how many minutes? (b) The current though that point is ______ A. (c) If the resistance of the circuit is 29.3 ? across this leg of the circuit, the voltage across this leg of the circuit is _______ V.
A simple electrical circuit comprises a battery and two 10.0 ? resistors connected in series. The...
A simple electrical circuit comprises a battery and two 10.0 ? resistors connected in series. The battery generates a voltage of 8.95 V and the current passing through the circuit is 425 mA. (a) Calculate the internal resistance (r) of the battery. (b) Briefly explain why a good voltmeter should have a high resistance.
What happens to the total current through a parallel circuit as more resistors are added in...
What happens to the total current through a parallel circuit as more resistors are added in parallel? How, approximately, is the total voltage across a power source in a multi resistors connected in parallel related to the voltage across the individual resistors?
The circuit shown in (Figure 1) contains two batteries, each with an emf and an internal resistance, and two resistors.
The circuit shown in (Figure 1) contains two batteries, each with an emf and an internal resistance, and two resistors. Part A Find the magnitude of the current in the circuit. Express your answer with the appropriate units.Part C Find the terminal voltage Vab of the 16.0 V battery. Express your answer with the appropriate units. Part D Find the potential difference Vac of point o with respect to point c. Express your answer with the appropriate units. 
Find the current through each of the three resistors of the circuit shown in the figure (Figure 1).
Problem 26.61 Find the current through each of the three resistors of the circuit shown in the figure (Figure 1). The emf sources have negligible internal resistance. Part A Find the current through 2.00-Ω resistor. Part B Find the current through 4.00-Ω resistor. Part C Find the current through 5.00 -Ω resistor.
Consider a simple electrical circuit where you charge a capacitor through a resistor by connecting a...
Consider a simple electrical circuit where you charge a capacitor through a resistor by connecting a battery (closing the switch) at time t=0. The charge Q on the capacitor is related to the current I by dQ/dt=I. Furthermore, by Kirchhoff’s law, V – RI – Vc =0, and the charge Q on the capacitor is Q=CVc, where C is the capacitance. That can be combined to give the differential equation dQ/dt = V/R - Q/RC The analytic solution is Q(t)=CV(1...
If 6.0 x 1013 electrons pass through a circuit to power a lightbulb for 25 seconds...
If 6.0 x 1013 electrons pass through a circuit to power a lightbulb for 25 seconds and there is a 12 V electric potential difference, what is the resistance of the lightbulb? What power is used in the lightbulb? What is the charge that passes through the lightbulb during this period? Explain why Francium has a much larger atomic radius than Sodium given what you know about electric charges. PLEASE WRITE CLEARLY WIT FBOs AND FORMULAS.THANK YOU
Imagine you and your friends are running in the neighborhood like electrons flowing through a circuit....
Imagine you and your friends are running in the neighborhood like electrons flowing through a circuit. Makeup stories that would serve as analogies for a parallel versus series circuits. Summarize the similarities and differences between the series and parallel circuits. Include your reasoning about what you think is happening. Describe the temperature response of resistors in a circuit. Are there any devices which take advantage of this property? If so, explain how they work in terms of the properties of...
± Analysis of Electroplating When electricity (the flow of electrons) is passed through a solution, it...
± Analysis of Electroplating When electricity (the flow of electrons) is passed through a solution, it causes an oxidation-reduction (redox) reaction to occur. If the solution contains a metal cation such as Ag+, the flow of electrons will reduce the silver ion, causing solid silver to plate onto the electrode. The amount of metal plated depends on the number of electrons passed. The total charge of a mole of electrons is 96,485 coulombs (C) and 1ampere(A)=1coulomb/second(C/s) 19/20 MC Part A...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT