How large a sample would you need to take

Assignment Help Other Subject
Reference no: EM131559746

Q1. Suppose that the average weekly earnings for employees in general automotive repair shops is $470, and that the standard deviation for the weekly earnings for such employees is $60. A sample of 100 such employees is selected at random. The mean and standard deviation of the sampling distribution of the average weekly earnings in the sample are 470 and 6, respectively. Find the probability that the mean of the sample is greater than $480.

Q2. You have been assigned to determine whether more people prefer Coke to Pepsi. Assume that roughly half the population prefers Coke and half prefers Pepsi. How large a sample would you need to take to ensure that you could estimate, with 90% confidence, the proportion of people preferring Coke within 5% of the actual value?

Reference no: EM131559746

Questions Cloud

Explain why function is discontinuous at given values of t : ENERGY CONSUMPTION The following graph shows the amount of home heating oil remaining in a 200-gal tank over a 120-day period (t = 0 corresponds to October 1).
The universal declaration of human rights : Explain how the Universal Declaration of Human Rights (UDHR) is relevant to human services professionals in your area of interest.
Option pricing-risk-free portfolio : Although replicating portfolio and risk neutral approach provide elegant solutions to option pricing, they require strong assumptions which are not realistic.
Purchase some new office furniture and equipment : A mid-sized business will purchase some new office furniture and equipment.
How large a sample would you need to take : How large a sample would you need to take to ensure that you could estimate, with 90% confidence, the proportion of people preferring Coke
What is the difference between the two firms roe : Firms Able and Baker are identical except for their level of debt and the interest rates they pay on debt. Each has $5 million in assets, $1 Million of EBIT
How many units must be sold each month : How many units must be sold each month? To how many sales dollars is this unit volume equivalent? Which costs would be considered mixed?
Explain the significance of the discontinuities of function : AILING FINANCIAL INSTITUTIONS Franklin Savings and Loan acquired two ailing financial institutions in 2009. One of them was acquired at time t = T1.
Option pricing-replicating portfolio : What is the appropriate price of the 1 year call option of XYZ corp with a strike price of $110 using replicating portfolio approach?

Reviews

Write a Review

 

Other Subject Questions & Answers

  Cross-cultural opportunities and conflicts in canada

Short Paper on Cross-cultural Opportunities and Conflicts in Canada.

  Sociology theory questions

Sociology are very fundamental in nature. Role strain and role constraint speak about the duties and responsibilities of the roles of people in society or in a group. A short theory about Darwin and Moths is also answered.

  A book review on unfaithful angels

This review will help the reader understand the social work profession through different concepts giving the glimpse of why the social work profession might have drifted away from its original purpose of serving the poor.

  Disorder paper: schizophrenia

Schizophrenia does not really have just one single cause. It is a possibility that this disorder could be inherited but not all doctors are sure.

  Individual assignment: two models handout and rubric

Individual Assignment : Two Models Handout and Rubric,    This paper will allow you to understand and evaluate two vastly different organizational models and to effectively communicate their differences.

  Developing strategic intent for toyota

The following report includes the description about the organization, its strategies, industry analysis in which it operates and its position in the industry.

  Gasoline powered passenger vehicles

In this study, we examine how gasoline price volatility and income of the consumers impacts consumer's demand for gasoline.

  An aspect of poverty in canada

Economics thesis undergrad 4th year paper to write. it should be about 22 pages in length, literature review, economic analysis and then data or cost benefit analysis.

  Ngn customer satisfaction qos indicator for 3g services

The paper aims to highlight the global trends in countries and regions where 3G has already been introduced and propose an implementation plan to the telecom operators of developing countries.

  Prepare a power point presentation

Prepare the power point presentation for the case: Santa Fe Independent School District

  Information literacy is important in this environment

Information literacy is critically important in this contemporary environment

  Associative property of multiplication

Write a definition for associative property of multiplication.

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