Find confidence interval for true mean thermostat setting

Assignment Help Basic Statistics
Reference no: EM131431025

Psychology and Human Behavior

The ambient temperature in which humans are comfortable varies with culture, activity, metabolic rate, psychological state, environment, and season. For most people in the United States, the comfort zone is 68 to 78°F. During a recent winter, a random sample of homeowners was selected from two different parts of the country. The thermostat temperature setting (in °F) was recorded for each home, and the summary statistics are given in the following table.

Region

Sample size

Sample mean

Sample standard deviation

New England

14

70.2

2.75

South

11

72.1

1.55

a. Find a 95% confidence interval for the true mean thermostat setting for New England homeowners during winter.

b. Find a 95% confidence interval for the true mean thermostat setting for Southern homeowners during winter.

c. What assumption(s) did you make in constructing these two confidence intervals?

d. Using your answers to parts (a) and (b), is there any evidence to suggest the New England mean thermostat setting is different from the Southern thermostat setting during winter? Justify your answer.

Reference no: EM131431025

Questions Cloud

Suggest the true mean price has increased : One month ago, a brokerage firm reported the true mean price of platinum to be $660.79 per troy ounce, with a recommendation to buy. Is there any evidence to suggest the true mean price has increased?
Why then do athletes receive higher salaries than teachers : Professional athletes command and receive higher salaries than teachers. Yet teachers, not athletes, are considered essential to economic growth and development. Why then do athletes receive higher salaries than teachers?
Propose two applications of knowledge that you have learned : Propose two applications of the knowledge that you have learned in this course to your current or a future position. Provide a rationale for your response.
Different types of game time entertainment : You will need to search YouTube (or other accessible medias) find 3 or more different types of game time entertainment. Think of promotions or half time shows. Use a diverse sporting events. Share the 3 game time entertainments that you watched. Brie..
Find confidence interval for true mean thermostat setting : Find confidence interval for true mean thermostat setting for New England homeowners during winter.- Find a 95% confidence interval for the true mean thermostat setting for Southern homeowners during winter.
Outline a plan that managers in low-calorie : Outline a plan that managers in the low-calorie, frozen microwaveable food company could follow in anticipation of raising prices when selecting pricing strategies for making their products response to a change in price less elastic.
Evaluation of nanobacteria as living organisms : As a researcher, what are two questions you would want to investigate to evaluate whether nanobacteria are living organisms? Explain why you believe these two questions to be the most to influence your evaluation of nanobacteria as living organis..
Major challenges of scaling-up agile projects : What are some common challenges and mistakes faced by agile teams? In particular, what do you think are the major challenges of scaling-up agile projects within an organization? How can these challenges and mistakes be overcome or avoided?
Write about topic - ozone : Write about given topic, Topic is ozone. Research design/Data collection/Data processing/Data manipulation/Data presentation/Data Analysis/Findings

Reviews

Write a Review

Basic Statistics Questions & Answers

  Consider the following experiment a ball is drawn without

consider the following experiment a ball is drawn without replacement from an urn containing two red and three blue

  If 10 men in the company are tested for the marker in this

a company employers 800 men under the age 55. suppose that 30 carry a marker of the male chromosome that indicates an

  Of course if the law is passed and the decision is to

q1. the wilhelms cola company plans to market a new pineapple-flavoured cola this summer. the decision is whether to

  1 let yr be the rth smallest among a random sample of size

1. let yr be the rth smallest among a random sample of size n from uniform 01 population. find the probability density

  Role of sensitivity analysis in lp

Discuss the role of sensitivity analysis in LP. Under what circumstances is it needed, and under what conditions do you think it is necessary?

  Explain impact on the statistics

Accidentally typed in error as a 415, what would be the impact on the following statistics? Answer with increase, decrease, or remain the same.

  Leadership and health care trends

The first of the six fundamental emerging trends in health care is Growing Emphasis on Cost Constraints, Transparency, and Value-Based Reimbursement (Rubino 336)

  The pitch attitude motion of a rigid spacecraft

Obtain a block diagram of the control system. Design a control system to meet the following specifications: (1) closed-loop system bandwidth about 10 rad/s, and (2) percent overshoot less than 20% to a 10° step input.

  What points or statistics strike you and why

After reviewing the Verizon Report, what points or statistics strike you? Why? Name some, why do you consider them candidates for Gen to Rev classification?

  Questions for exploring the lives of women

Questions for exploring the lives of women who sought change The purpose of this exercise is to produce notes that will help you to

  Effort to prove that the coin is unfair

A coin is unbalanced such that it comes up tails 55% of the time. In an effort to prove that the coin is unfair, an experimenter flips the coin 50 times.

  The following probability distribution shows the likelihood

a company is studying the number of monthly absences among its 125 employees. the following probability distribution

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