Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Assume we draw two independent random samples, one comprising of 25 in-state first years and other consisting of 25 out-of-state first years. What is the probability that the sample mean score for in-state first yearsexceeds that of out of state first years? Assume that two different tests, 1 and 2, are to be given to the student selected at random from the certain population. Assume as well that the mean score on test 1 is 85 and the standard deviation is 10; that the mean score on test 2 is 90 and standard deviation is 16; that the scores on the two tests have the bivariate normal distribution; and that the correlation of two scores is 0.8. What is the probability that the sum of student's scores on the two tests will be greater than 200?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M916945

Have any Question? 


Related Questions in Statistics and Probability

A committee comprised of 15 members is called upon to rank

A committee comprised of 15 members is called upon to rank three colors: red, blue, and yellow, from most preferred to least preferred. The committee members simultaneously announce their strict preference relations over ...

A study wants to examine the relationship between student

A study wants to examine the relationship between student anxiety for an exam and the number of hours studied. The data is as follows: Student Anxiety Scores Study Hours 5 1 10 6 5 2 11 8 12 5 4 1 3 4 2 6 6 5 1 2 Why is ...

Consumer reports provided extensive testing and ratings for

Consumer Reports provided extensive testing and ratings for more than 100 HDTVs. An overall score, based primarily on picture quality, was developed for each model. In general, a higher overall score indicates better per ...

While this campaign ended with a massive us military

While this campaign ended with a massive US military victory in which the Viet Cong were utterly destroyed as a fighting force, it is widely considered a major political defeat for the US because it initiated a major gro ...

At a school pep rally a group of sophomore students

At a school pep rally, a group of sophomore students organized a free raffle for prizes. They claim that they put the names of all the students in the school in the basket and that they randomly drew 36 names out of this ...

1 what is the central difficulty involved in obtaining

1. What is the central difficulty involved in obtaining simple random samples from large populations? 2. How does cluster sampling solve the practical problems involved in simple random sampling?

An airline estimates that 92 of people booked on their

An airline estimates that 92% of people booked on their flights actually show up. If the airline books 76 people on a flight, find the propability that exactly 73 people will show up. for which the maximum number is 74, ...

A population of lawnmowers life expectancy is described

A population of lawnmowers' life expectancy is described with a Weibull distribution, where α=1 and β=15. Determine 1× (once) and 2× (twice) the expected mean lifes for the population, as well as their corresponding cumu ...

Historically 25 of all students taking an statistics course

Historically 25% of all students taking an statistics course have failed (i.e. receive a grade below C). Professor Han thinks that she has a better method of teacher statistics to business students. She is given a random ...

A consumer psychologist asked to test a claim by a swimming

A consumer psychologist asked to test a claim by a swimming school that its instructors could teach the average seven-year-old to swim across an Olympic-sized pool in less than 2 minutes. The psychologist arranged for ei ...

  • 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