User Account

All Pages

Draw a random sample from a population

Assignment Help Business Economics
Reference no: EM131472167

Question 1: Suppose you draw a random sample from a population with a mean of 6 and a variance of 9. What is the standard error of the sample mean if the sample size is 49?

Question 2: Suppose you didn't know the population mean in variance from question 1, but the sample had mean 7 and variance 10. What is the estimated standard error of the sample mean?

Question 3: If you hypothesized that the mean of the population from which you drew the sample in question 2 was 8, what is the z-score of the sample mean?

Question 4: If the central limit theorem applies, what is the estimated p-value of the result found in question 3? (Use two sided test)

Question 5: Based on your previous answers, what is the lower limit of the 95% confidence interval for the sample mean.

Question 6: Now suppose the sample size were 256 and the sample mean and variance were 5.5 and 9.5 respectively. What is the estimated standard error of the sample mean?

Question 7: Based on your answer to question 6, what is the test statistic of the sample mean under the hypothesis that the population mean is 6?

Question 8: What is the p-value of the result found in question 7? (Use two sided test)

Question 9: Based on your previous answers, what is the upper limit of the 99% confidence interval for the mean.

Question 10: Now suppose you draw a sample of size 10 from a population that is known to follow a normal distribution. The sample mean is 1 and the sample variance is 3. What is the estimated standard error of the mean?

Question 11: For the sample in question 10, what is the relevant critical value (5% significance) for hypothesis tests on the mean?

Question 12: What is the test statistic for the sample in question 10 under the null hypothesis that the population mean is 0?

Question 13: If the true mean of the population from question 10 was 2, what sort of error, if any, would you make using the hypothesis test above?

Question 14: Suppose you draw a sample of size 250 from a population of size 1,000. By what factor should you adjust the standard error estimates? (Relative to the usual standard error estimator)

Question 15: To get a margin of error one-fourth as large, you would need to increase your sample size by a what factor?

Reference no: EM131472167

Questions Cloud

What comparisons can be found between the gcu mission-domain : What comparisons can be found between the GCU Mission and Domains/CON Mission and Program Competencies with the AACN's Essentials.
Decrease in the unemployment rate : Is a decrease in the unemployment rate necessarily a good thing for the nation? Explain.
Problems can be either operational or strategic in nature : Think of a company/organization you are familiar with. The problems can be either operational or strategic in nature.
Explain network management strategies for fictional company : Write proposal of 2 - 4 page document regarding Network Management Strategies for a fictional company called MyPlace.Org
Draw a random sample from a population : Suppose you draw a random sample from a population with a mean of 6 and a variance of 9. What is the standard error of the sample mean if the sample size is 49?
The project software requirements specification : BN209 Software Engineering The purpose of this assignment is to produce and submit a consolidated FIRST VERSION of the SRS Document and MS Access Prototype for your chosen project.
Can the general manager legally collect : When Glocker received her bill from Lawnmark, a lawn care company, she became very angry about the amount that the company claimed she owed.
Reflect on the comments made by dr mauk : Determine what qualitative research design was used in your selected article and evaluate whether it was the best choice.
Viewed from an optimization perspective : Briefly describe a recent decision you made that could be viewed from an optimization perspective.

Reviews

Write a Review

Business Economics Questions & Answers

  Economics assignment

This document contains various important questions and their appropriate answers in the subject field of Economics.

  Demand and supply curves

Economics is the study of the principles governing the allocation of scarce means among competing ends when the objective of the allocation is to maximize the attainment of the ends.

  Long-run perfectly competitive equilibrium for the firm

Evaluate Government intervene and correct this situation?(a) Explain the concept of a concentration ratio. A rise in the price of magarine Explain the impact of external costs and external benefits on resource allocation long-run perfectly c..

  Supply and demand diagrams

Explain each of the following using supply and demand diagrams,  With the use of a graph, explain how these two programs affect cigarette consumption and the price of cigarettes.

  Case study: fisher-price toys

The case study of the Fisher-Price Toys, Inc., a popular case in basic economics and management from the prestigious Harvard Business School.

  Draw the production possibility curve

Draw the production possibility curve and a. Define consumer surplus and producer surplus.

  Tax revenue

The Australian government administers two programs that affect the market for cigarettes

  Maximize total welfare

How many tickets to sell to maximize total welfare.

  Difference between the cv and the ev

The change in consumer surplus (?CS) is not "theoretically" justifiable like the CV and EV but it continues to be the most widely used measure of consumer welfare change. Explain how this can be reconciled

  Depict von neumann-morgenstern utility index u in a diagram

Depict the von Neumann-Morgenstern utility index u in a diagram

  What is the market solution

What is the market solution (market price and quantity) and What is the total surplus of the society under the market solution

  Calculate gross national product and net national product

Calculate gross national product and net national product

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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