Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Probability using normal distribution.

A study of long distance phone calls made from corporate offices of the Pepsi Bottling Group, Inc., In Somers, New York, showed the calls follow the normal distribution. The mean length of time per call was 4.2 minutes and the standard deviation was 0.06 minutes.

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

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

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

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

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

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920668

Have any Question? 


Related Questions in Statistics and Probability

What is a critical value how is the critical value

"What is a critical value? How is the critical value determined? Are there differences between the standard normal table and the student t table when trying to determine the critical value? Explain."

Thirty percent of the time a sale at food shoppe is paid

Thirty percent of the time, a sale at Food Shoppe is paid using a store-issued credit card. A sample of 18 Food Shoppe sales is obtained. Let X represent the number of sales paid for using the store-issued credit card. W ...

A business student is interested in estimating the 99

A business student is interested in estimating the 99% confidence interval for the proportion of students who bring laptops to campus. He wishes a precise estimate and is willing to draw a large sample that will keep the ...

How did the working class assert itself in europe during

How did the working class assert itself in europe during the late 18th century? provide examples and compare to the philosophy of social darwinism.

1 in what ways are experimental research designs preferable

1. In what ways are experimental research designs preferable to correlational or descriptive designs? What are the limitations of experimental designs? 2. What is the purpose of random assignment to conditions? 3. Descri ...

Three experiments investigating the relation between need

Three experiments investigating the relation between need for cognitive closure and persuasion were performed. Part of the study involved administering a "need for closure scale" to a group of students enrolled in an int ...

The population of lengths of aluminum-coated steel sheets

The population of lengths of aluminum-coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.3 inches. What is the probability that average length of a steel sheet from a sa ...

1 you wish to learn the proportion of mba students that are

1.) You wish to learn the proportion of MBA students that are female within 3%, and with 98% confidence. How large of a sample should you get? 2.) You wish to learn the average age of an MBA student within 2 years and wi ...

Suppose that a certain college class contains 65 students

Suppose that a certain college class contains 65 students. Of these, 35 are seniors, 33 are biology majors, and 5 are neither. A student is selected at random from the class. (a) What is the  probability  that the studen ...

In this exercise we consider a situation with n men and n

In this exercise we consider a situation with n men and n women. (a) Prove that if in stage t of the men's courtship algorithm, a particular man is dismissed for the (n - 1)-th time, then the algorithm terminates at stag ...

  • 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