Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Make the 95% confidence interval for the difference among the two population means.

The U.S. Department of Transportation offers the number of miles that residents of the 75 largest metropolitan areas travel per day in a car. Presume that for a simple random sample of 50 Buffalo residents the mean is 22.5 miles a day as well as the standard deviation is 8.4 miles a day and for an independent simple random sample of 40 Boston residents the mean is 18.6 miles a day as well as the standard deviation is 7.4 miles a day.

a. What is the point evaluation of the difference between the mean number of miles that Buffalo residents travel per day and the mean number of miles that Boston residents travel per day? ________

b. What is the 95% confidence interval for the dissimilarity between the two population means? (m1,m2)  ________

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M923342

Have any Question? 


Related Questions in Statistics and Probability

One of the behavioral research case studies involved agocha

One of the Behavioral Research Case Studies involved Agocha and Cooper's (1999) study of partner characteristics and intentions to practice safe sex. Below are the Pearson correlations between the likelihood that partici ...

1 in may the mean price of gas in the buffalo area was 2714

1. In May, the mean price of gas in the Buffalo area was $2.714 per gallon with a standard deviation of $0.045. In a sample of 32 gas stations, what percentage will have a price per gallon of gas between $2.695 and $2.72 ...

An airplane manufacturer currently produces six models of

An airplane manufacturer currently produces six models of airplanes for commercial sale. the airline that lauren works for is rapidly expanding and would like to purchase three airplanes of different models to service va ...

1 gender was life better for women during the middle ages

1. GENDER Was life better for women during the Middle Ages than in past ages? What major events had an impact on their daily life? What role did magic play in the Middle Ages and how did it affect women? How were older w ...

1e model for a simple linear regression

1. Recall the model for a simple linear regression:  where  is Normally distributed with mean 0 and variance , where Cov( ) = 0 for all i, j and Cov(  = 0 for all i,j.A day trader wishes to develop a prediction model for ...

1 list as many sources of archival data as you can2 what

1. List as many sources of archival data as you can. 2. What four kinds of research questions are particularly suited for the use of archival data? 3. Describe how you would conduct a content analysis.

1 should demand characteristics be eliminated or

1. Should demand characteristics be eliminated or strengthened in an experiment? Explain. 2. How do researchers detect and eliminate placebo effects? 3. What effect does error variance have on the results of an experimen ...

Asume that you plan to use a significance level of alpha

Assume that you plan to use a significance level of α = 0.05 to test the claim that p1 = p2. Use the given sample sizes and numbers of successes to find the P-value for the hypothesis test. n1 = 50 n2 = 50 x1 = 8 x2 = 7

What is the difference between the standard deviation

What is the difference between the standard deviation, standard error of the mean, and standard error of the estimate? Discuss and offer examples.

1 why does quasi-experimentation sometimes require the use

1. Why does quasi-experimentation sometimes require the use of "patched-up" designs? 2. Discuss the philosophy of critical multiplism as it applies to quasi-experimental research.

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen