How many more motors should be tested

Assignment Help Basic Computer Science
Reference no: EM131236480

To determine the efficiency of a batch of production of electric motors, 10 motors are tested. The average efficiency of the sample is calculated to be 91.0%, and the standard deviation of the sample is 0.8 percentage point.

(a) Determine a 95% confidence interval for the mean efficiency of the given batch of motors.

(b) If we want to cut the confidence interval to one-third, how many more motors should be tested?

Reference no: EM131236480

Questions Cloud

Determine the confidence interval on the mean weight : In problem 6.57, if the sample size was 20 with the same statistics, determine the confidence intervals on the mean of the weight of buttercups for the given confidence levels.
Persian wars are a definitive turning point : In 500 words, answer the follow question: Some historians declare that the Persian Wars are a definitive turning point in History. Do you agree or disagree with this statement, and why?
Determine all base currents and collector currents : Consider the Schottky TTL circuit in Figure. - Determine all base currents, collector currents, and node voltages for vX = vY = 0.4 V.
Carved a path of destruction : Military campaign from September to December 1864 in which Union forces under General Sherman marched from Atlanta, Georgia to Savannah, Georgia. Carved a path of destruction.
How many more motors should be tested : To determine the efficiency of a batch of production of electric motors, 10 motors are tested. The average efficiency of the sample is calculated to be 91.0%, and the standard deviation of the sample is 0.8 percentage point.
Shenandoah valley of virginia by union general : A campaign in the Shenandoah Valley of Virginia by Union general Philip H. Sheridan's troops. The troops destroyed grain, barns, and other useful resources to punish farmers who had aided Confederate raiders.
Briefly discuss two different definitions of group dynamics : Pharmaceutical companies and manufacturers of health care products often lobby on issues such as healthcare reform and patent protection. What type of a political strategy are these companies following?
Which would most strengthen agis supply chain strategy : The system has worked well for both companies so far and there has never been any delay in the supply of steel. Which of the following, if true, would most strengthen Agis' supply chain strategy?
Find the efficiency of batch of production of electric motor : To determine the efficiency of a batch of production of electric motors, 8 motors are tested. The average efficiency of the sample is calculated to be 88.5% and the standard deviation of the sample is 0.5 percentage point.

Reviews

Write a Review

Basic Computer Science Questions & Answers

  Write the function to gen kids u ()

The parameters to gen Kids U () and their default values should be the same as gen Kids ().

  Internet user is a college graduate

(a) What is the probability that a California adult is an internet user, given that he or she is a college graduate? Round your answer to decimal places. (b) Among California adults, what is the probability that a randomly chosen internet user i..

  What pde will the option price satisfy

Suppose a stock follows geometric Brownian motion in a BlackScholes world.

  Show the risk mitigation strategy

Each member selects one of the highest risks. Explain why these are considered high risk, and explain their potential effect on the project and outline a risk mitigation strategy for the each of the selected high risks.

  Write a code fragment to load the numbers in addresses

Write a code fragment to load the numbers in addresses

  Ports on the same network

1) Suppose a bridge has two of its ports on the same network. How might the bridge detect and correct this? 2) Having ARP table entries time out after 10 to 15 minutes is an attempt at a reasonable compromise. Describe the problems that can occur i..

  Set all of the computers

What is the command to set all of the computers listed in hosts to the RHOST?

  Make a marketing plan for

Final Assignment A: Choosing a Business Idea In your next assignment, you'll create a marketing plan for a business. Before you create a marketing plan, you'll think about what type of business you'd like to make a marketing plan for.

  Write a recursive method

public static boolean isSorted(List l) Write a recursive method that returns true if a linked list is sorted (nondecreasing) order and returns false otherwise. An empty list is considered to be sorted.

  Convert fahrenheit to celsius

a program that will convert Fahrenheit to Celsius. The user will enter the degrees in Fahrenheit and the program will give the results in Celsius. This is to be done in Pseudo Code Only. good programming techniques. Must also use modular programmi..

  Signed-magnitude representations binary numbers in computers

Why do we require signed-and-magnitude representations of binary numbers in computers? Represent decimal values: -37, -54, and 56 in binary by using signed-and magnitude representation.

  Write the routines to perform insertion and deletion

Write the routines to perform insertion, deletion, and searching in skip lists.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd