Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Probability using Normal distribution.

A study group of long distance phone calls made from the corporate offices of Pepsi Bottling Group, Inc., in Somers, New York, revealed length of the calls, in minutes, follows normal probability distribution. The mean length of time per call was 4.2 minutes and the standard deviation was 0.60 minutes.

a. What fraction of calls last between 4.2 and 5 minutes?

b. What fraction of calls last more than 5 minutes?

c. What fraction of calls last between 5 and 6 minutes?

d. What fraction of calls last between 4 and 6 minutes?

e. As part of her report to the president, director of communications would like to report length of the longest (in duration) 4 percent of calls. What is this time?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920230

Have any Question? 


Related Questions in Statistics and Probability

You have been asked to evaluate the effects of a new

You have been asked to evaluate the effects of a new educational video that was developed to reduce racial prejudice among adolescents. You plan to administer a pretest measure of racial attitudes to 60 adolescent partic ...

There are 1000 students in a high school among the 1000

There are 1000 students in a high school. Among the 1000 students, 150 students take AP Statistics, and 300 students take AP French. 100 students take both AP courses. Let S be the event that a randomly selected student ...

How did some indian religious leaders add certain christian

How did some Indian religious leaders add certain Christian teachings to their traditional beliefs?

You are purchasing a home for 220000 the down payment is 30

You are purchasing a home for $220,000. The down payment is 30% and the balance will be financed with a 20- year mortgage at 9% and 2 discount points. You put down a deposit of $5,000 (applied to the down payment) when t ...

Jenks co partially refunded 180000 of its outstanding 10

Jenks Co. partially refunded $180,000 of its outstanding 10% note payable, made 1 year ago to Arma State Bank by paying $180,000 plus $18,000 interest (having obtained the $198,000 by using $52,400 cash and signing a new ...

Case study diets and weight lossnbspa study innbspthe

CASE STUDY Diets and Weight Loss  A study in The Journal of the American Medical Association describes the effects of diets on weight control. In the study, 311 women were randomly divided into four groups. The first gro ...

A sample size of 50 is selected from a normal distribution

A sample size of 50 is selected from a normal distribution having a mean of 95 and a standard deviation equal to 15. What is the probability of selecting a sample having a mean exceeding 100?

1 the total variance in a set of scores can be partitioned

1. The total variance in a set of scores can be partitioned into two components. What are they, and how do they differ? 2. What are some factors that contribute to error variance in a set of data? 3. Generally, do resear ...

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 ...

In a recent poll of 760 homeowners in the united states one

In a recent poll of 760 homeowners in the United States, one in five homeowners reports having a home equity loan that he or she is currently paying off. Using a confidence coefficient of 0.90, derive an interval estimat ...

  • 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