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

Explaining geographical information systems

Considering this, explain in scholarly detail some suitable examples of geographical information systems and how they are utilized in supporting both marketing and sales.

What is relationship between closed itemsets and generators

An itemset X is called a generator on a data set D if there does not exist a proper sub-itemset Y ⊂ X such that support(X) = support(Y). A generator X is a frequent generato

Consider the procedure described in adaptive playout delay

Consider the procedure described in "Adaptive Playout Delay" for estimating average delay di. Let r1 - t1 be the most recent sample delay, let r2 - t2 be the next most recen

Primary key in the supplier table

Using a subquery, check to make sure each product supplier ID (foreign key) is also listed as a primary key in the Supplier table. (This is a referential integrity check).

Differences between ip addresses and mac addresses

Explain the difference between packet switching and circuit switching. Describe the differences between IP addresses and MAC addresses. Diagram the route of data over an Eth

Calculate the eirp of the transmitted signal

A microwave transmitter has an output of 0.1 W at 2 GHz. Assume that this transmitter is used in a microwave communication system where the transmitting and receiving antenn

Design a program that will read a file of product records

Design a program that will read a file of product records, each containing the item number, the item name, and the quantity sold this year and the quantity sold last year. The

Microsoft dynamics introduction

Topics: navigation, role center, productivity enhancement, decision support, workflow, industries supported, etc. Please write 1 FULL page report on what you have learned fr


Write a Review

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