What is the point estimate of the proportion, Basic Statistics

Assignment Help:

According to Thomson Financial, through January 25, 2006, the majority of companies reporting profits had beaten estimates (BusinessWeek, February 6, 2006). A sample of 162 companies showed 104 beat estimates, 29 matched estimates, and 29 fell short.

a. What is the point estimate of the proportion that fell short of estimates?

b. Determine the margin of error and provide a 95% confidence interval for the proportion that beat estimates.

c. How large a sample is needed if the desired margin of error is .05?

 


Related Discussions:- What is the point estimate of the proportion

Optics, A thief is running away in his car with a velocity of 20m/s.A polic...

A thief is running away in his car with a velocity of 20m/s.A police jeep is following him which is sighted by the thief in his rearview mirror, a convex mirror of focal length 10m

Explain the term “trial balance” and its needs, Explain the term “Trial Bal...

Explain the term “Trial Balance” and its needs for an organization. Ans. A Trial Balance is a statement of summarization of the all the involved ledgers accounts at the end of th

Student, Design an activity based cost system requires that: a) the job bid...

Design an activity based cost system requires that: a) the job bid process redesigned b) resource costs be linked to the activities performed c)the cost of activities be linked to

Pearsons chi square, difference between tests of goodness of fit & tests of...

difference between tests of goodness of fit & tests of independence

Annual breakeven point, Hanks Western Wear is a western hat retailer in Lub...

Hanks Western Wear is a western hat retailer in Lubbock, TX.  Though Hanks carries various styles of western hats, every hat has approximately the similar price and invoice (purcha

Obtain the critical value for a hypothesis test, Obtain the critical value ...

Obtain the critical value (or values) for a hypothesis test for the mean if you conduct: (a) an upper tail "z" test at the 1% level of significance. (b) a two-tailed "z" test

Calculate its stationary probabilities, A small specialized workshop is use...

A small specialized workshop is used to perform periodic check-up on some high-tech devices. The check up is made in three stages whose durations are independent random variables w

Book-keeping financial, Expertsmind.com offering financial accounting help...

Expertsmind.com offering financial accounting help,The Financial Accounting vs. The Book-keeping issues itself with the producing (correctly and in a set of books) of those dealin

Write Your Message!

Captcha
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