User Account

All Pages

Population mean energy usage for this model of refrigerator

Assignment Help Applied Statistics
Reference no: EM132004937

An organisation wants to estimate the actual electricity usage of a refrigerators that has an advertised energy usage of 439. It tests a random sample of n = 18 fridges and finds a sample mean usage of 445 and a sample standard deviation of 40. Assume that the energy usage in the population is normally distributed.

(a) Do you think that the organisation should accuse the manufacturer of producing fridges that do not meet the advertised energy consumption? You should justify your answer with a hypothesis test.

(b) Construct a 95% confidence interval estimate of the population mean energy usage for this model of refrigerator.

Reference no: EM132004937

Questions Cloud

How do immigrants affect the us economy in general : The economic impact of immigration in the United States in the last five years: how do immigrants affect the US economy in general?
What the descriptive statistics tell us about the variable : Compute descriptive statistics for each variable along with an explanation of what the descriptive statistics tell us about the variable.
What are three major growth opportunities for your country : Twenty years in the future: What are the estimated population, age distribution, and income levels of your country?
What design and methods were used : Design and Methods: What design and methods were used? Are they rigorous and systematic? Validity and Reliability: Is the study valid and reliable?
Population mean energy usage for this model of refrigerator : Construct a 95% confidence interval estimate of the population mean energy usage for this model of refrigerator.
Identify the main sources of income for a real estate agent : Identify the potential ethical challenges to a Real Estate Investor and/or Broker in regards to their primary customers or investors.
Half of residents would rather have motorway tolls : Is there evidence that more than half of residents would rather have motorway tolls reduced by 25 cents than have their annual car registration lowered
Analyze the problem in the scenario : Write a paper that presents a synthesis of your ideas about solving the problem using this systematic approach.
Define communicable and infectious disease : In your own words and using the proper evidence-based references define communicable and infectious disease. Discuss if there is any similarity.

Reviews

Write a Review

Applied Statistics Questions & Answers

  Hypothesis testing

What assumptions about the number of pedestrians passing the location in an hour are necessary for your hypothesis test to be valid?

  Calculate the maximum reduction in the standard deviation

Calculate the maximum reduction in the standard deviation

  Calculate the expected value, variance, and standard deviati

Calculate the expected value, variance, and standard deviation of the total income

  Determine the impact of social media use on student learning

Research paper examines determine the impact of social media use on student learning.

  Unemployment survey

Find a statistics study on Unemployment and explain the five-step process of the study.

  Statistical studies

Locate the original poll, summarize the poling procedure (background on how information was gathered), the sample surveyed.

  Evaluate the expected value of the total number of sales

Evaluate the expected value of the total number of sales

  Statistic project

Identify sample, population, sampling frame (if applicable), and response rate (if applicable). Describe sampling technique (if applicable) or experimental design

  Simple data analysis and comparison

Write a report on simple data analysis and comparison.

  Analyze the processed data in statistical survey

Analyze the processed data in Statistical survey.

  What is the probability

Find the probability of given case.

  Frequency distribution

Accepting Manipulation or Manipulating

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: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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