Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

How to find the probability for Normal distribution.

ACT scores of high school seniors and the scores of high school seniors on the ACT college entrance examination in 2003 had mean JL = 20.8 as well as standard deviation (J = 4.8. The spreading of scores is only roughly Normal.

(a) describe what is the approximate probability that a single student randomly chosen from all those taking the test scores 23 or higher?

(b) Currently take an SRS of 25 students who took the test. describe what are the mean and standard deviation of the sample mean score x of these 25 students?

(c) describe what is the approximate probability that the mean score x of these students is 23 or higher?

(d) describe which of your two Normal probability calculations in (a) and (c) is more accurate and Why?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920094

Have any Question? 


Related Questions in Statistics and Probability

Spss assignment 02the data set you need to do the

SPSS Assignment 02 The data set you need to do the assignment can be found on Blackboard in the folder "Assignments and due dates" and in the spreadsheet "Data for Assignment 2". This is a group assignment and you can su ...

Microsoft word - stat Microsoft Word - STAT Assignment 1.

Microsoft Word - STAT Assignment 1. Anationalrepresentativesurveyofstudentsingrades7-12askedaboutthe experience of these students with respect to sexual harassment. The students were asked whether or not they were harass ...

Following the rash of school shootings that occurred in the

Following the rash of school shootings that occurred in the late 1990s, some individuals suggested that violent video games were making children and adolescents more aggressive. Imagine that you obtained a sample of 150 ...

Problem 1 a menu offers a choice of 3 salads 8 main dishes

Problem 1. A menu offers a choice of 3 salads, 8 main dishes, and 5 desserts. How many different meals consisting of one salad, one main dish, and one dessert are possible? Problem 2. Wing has different books to arrange ...

A weight-loss company wants to statistically prove that its

A weight-loss company wants to statistically prove that its methods work. They randomly selected 10 clients who had been on the weight loss program for between 55 and 65 days. They looked at their beginning weights and t ...

It is estimated that 89 of senior citizens suffer from

It is estimated that 89% of senior citizens suffer from sleep disorders and 8% suffer from anxiety. Moreover, 5% of senior citizens suffer from both sleep disorders and anxiety. (a) Given that a senior citizen suffers fr ...

Write a two-to three-page short paper 10 percent of your

Write a two-to three-page short paper (10 percent of your total grade) comparing and contrasting the presentation of a historical event by two different historians. Historians do not only provide accounts of events (them ...

While some countries tend to favor expansion of the

While some countries tend to favor expansion of the European Union, others generally oppose it. Entering a union agreement with other countries has both benefits and drawbacks for each member country. In what ways do you ...

Peggy wants to know if her pack of cookies was

Peggy wants to know if her pack of cookies was statistically different from those of the rest of the class. She found out the average number of chips per cookie this year was 13.82 and the standard deviation for the clas ...

The mathematics faculty at a college consists of 6

The mathematics faculty at a college consists of 6 professors, 9 associate professors, 7 assistant professors, and 12 instructors. If one faculty member is randomly selected, find the probability of choosing a professor ...

  • 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