Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

describe Cornell University Study problem - Margin of error, Confidence Interval

A Cornell university study of wage differentials among men and women reported that one of the reasons wages for men are higher than wages for women is that men tend to more years of work experience than women. Presume the following results were obtained for each group.

Men

Women

N1 = 100

n2 = 85

X1 = 14.9

x2 = 10.3

Standard deviation1 = 5.2 yrs

Standard deviation2 = 3.8 yrs

1) What is the point estimate of the difference between the two population means?
2) At 95% confidence what is the margin of error?
3) What is the 95% confidence interval estimate of the variance between the two population means?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921308

Have any Question? 


Related Questions in Statistics and Probability

In minitab open the data set pulsemtw you may assume that

In Minitab, open the data set PULSE.mtw. You may assume that these 92 students are a random sample of all undergraduates. (a) Obtain a 95% confidence interval for µ F  - µ M , the extent to which average pulse rates of f ...

Imagine that your town or city has increased its nighttime

Imagine that your town or city has increased its nighttime police patrols to reduce crime. Design two quasi-experiments to determine whether this intervention has been effective, one that uses some variation of a nonequi ...

Imagine you obtained a point biserial correlation of 35

Imagine you obtained a point biserial correlation of .35 between gender and punctuality, showing that men arrived later to class than did women. You think that this correlation might be due to the fact that more women th ...

A system has two components that operate in parallel at

A system has two components that operate in parallel. At least one of the components must function properly if the system is to function properly. The probabilities of failures for the components 1 and 2 during one perio ...

1 in an experiment with two independent variables an anova

1. In an experiment with two independent variables, an ANOVA partitions the total variance into four components. What are they? 2. MS wg  appears in the denominator of every F-test. Why?

A teacher wants to estimate the average pa of all teachers

A teacher wants to estimate the average pa of all teachers in a district. She wants to be 95% sure her estimate is correct. The standard deviation is $1,000, how large must her sample be to be accurate within $200? Pleas ...

A simple random sample of 120 men results in a mean of 80

A simple random sample of 120 men results in a mean of 80 beats per minute, and a standard deviation of 11 beats per minute. Based on the sample results, the researcher concludes that the pulse rates of men have a standa ...

A researcher studying correctional treatment on 192 sex

A researcher studying correctional treatment on 192 sex offenders composed of 10 females and 182 males finds that 11 males along with 1 female had reoffended. He then calculates the percentages and finds that 10% of fema ...

Suppose that a certain college class contains 42 students

Suppose that a certain college class contains 42 students. Of these, 23 are freshmen, 28 are history majors, and 8 are neither. A student is selected at random from the class. (a) What is the probability that the student ...

A ski gondola carries skiers to the top of a mountain it

A ski gondola carries skiers to the top of a mountain. It bears a plaque stating that the maximum capacity is 14 people or 2324 lb. That capacity will be exceeded if 14 people have weights with a mean greater than 2324 l ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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