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

Generate a 100-point random sequence using randnnbspnbspin

Generate a 100-point random sequence using randn   in MATLAB. Use a first-order AR filter to filter this random process. That is, the filter is   Use the filtered data to obtain an estimate for the first-order prediction ...

The traffic managers of toll roads and toll bridges need

The traffic managers of toll roads and toll bridges need specific information to properly staff the toll booths so that the queues are minimized (i.e., the waiting time is minimized). (a) Assume that there is one toll bo ...

Final projectobjectives- identify a hypothesis testing

FINAL PROJECT Objectives - Identify a hypothesis testing problem in print. - Conduct a survey to verify or dispute the results of the hypothesis test. - Summarize the article, analysis, and conclusions in a report. Instr ...

Use the matlab randn function to generate a large number of

Use the MATLAB randn function to generate a large number of samples generated according to a Gaussian distribution. Let A be the event A = he sample is greater than 1.5}. Of those samples that are members of the event , ...

1 what differences do you see in the makeup of the crowds

1) What differences do you see in the makeup of the crowds surroundings the pulpits on the two sides of the picture? What point is Cranach trying to make? 2) What views of the Bible are presented in the woodcuts? 3) Exam ...

A fire department aims to respond to fire calls in 4

A fire department aims to respond to fire calls in 4 minutes or less, on average. Response times are normally distributed with a standard deviation of 1 minute. Would a sample of 18 fire calls with a mean response time o ...

Assignment bottling company case studyimagine you are a

Assignment: Bottling Company Case Study Imagine you are a manager at a major bottling company. Customers have begun to complain that the bottles of the brand of soda produced in your company contain less than the adverti ...

Let x be the number of heads observed in five tosses of a

Let X be the number of heads observed in five tosses of a fair coin. Then, X fair dice are thrown. Let Y be the sum of the numbers showing on the dice. Determine the mean and variance of Y.

The number of cars approaching a toll booth in a minute

The number of cars approaching a toll booth in a minute follows a geometric random variable with a mean of 2 cars/minute. The time it takes the toll collector to serve each car is an exponential random variable with a me ...

Suppose x is a vector of iid random variables where each

Suppose X is a vector of IID random variables where each element has some PDF,    Find an example PDF such that the median is a better estimate of the mean than the sample mean.

  • 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

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate