Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Confidence interval for single proportion.

1. The independent Department Store wants to determine the proportion of their charge accounts having unpaid balance of $500.00 or more. A sample of 250 accounts revealed that 100 of them had unpaid balance of $500 or over. What is the 99 percent confidence interval for the population proportion?

2. The manager of the A & B Supermarket wants to estimate the mean time a customer spends in the store. A 95 percent confidence level must be used. The standard deviation of population based on a pilot survey is estimated to be 3.0 minutes. The manager requires the estimate to be within 1.0 minutes of the population value. What sample size is needed?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M919940

Have any Question? 


Related Questions in Statistics and Probability

Hre are a few more questions1 suppose p a 071 p b

Here are a few more questions: 1. Suppose P ( A) = 0.71, P (B) = 0.53 and P (A ∩ B) = 0.28 . Find P (B|A^c) 2. Suppose we select, without looking, one marble from a bag containing 4 red marbles and 10 green marbles. What ...

Problem - consider the three alternative allocations of

Problem - Consider the three alternative allocations of money (m) in an economy composed of three people, with people labeled A, B, C, and alternative allocations labeled X, Y, Z. The values in the 9 cells are the moneys ...

The voltage of communication signal is measured however the

The voltage of communication signal is measured. However, the measurement procedure is corrupted by noise resulting in a random measurement with the PDF shown in the accompanying diagram. Find the probability that for an ...

Msa stat workshop assessment requirements1 what is the

MSA STAT Workshop Assessment REQUIREMENTS 1. What is the population Regression function? ("GNP"  is dependent, and "Invest," "CPI" and "Interest" are independent) 2. Is this regression function significant overall (state ...

I deal myself 5 cards from a standard 52-card deck find the

I deal myself 5 cards from a standard 52-card deck. Find the probabilities of each of the following events: (a) 2 of a kind; (b) 3 of a kind; (c) 2 pair (e.g., 2 eights and 2 queens); (d) a flush (5 cards all of the same ...

In the game of risk two players compete in a game of dice

In the game of RISK, two players compete in a game of dice rolling for conquest of the world. One player is on "offense" while the other is on "defense." For this problem, the player on offense is allowed to roll multipl ...

The data set you need to do the assignment can be found on

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 submit the work in gr ...

Assignment decision analysis1the lake placid town council

Assignment: Decision Analysis 1. The Lake Placid Town Council decided to build a new community center to be used for conventions, concerts, and other public events, but considerable controversy surrounds the appropriate ...

Questionnbspproblem consists of two different scenarios

Question:  Problem consists of two different scenarios requiring you to find the market supply curve. a.  The market supply curve is given as P = 100 + 2Q. Several new firms enter this market and now you are told that at ...

A communication system sends data in the form of packets of

A communication system sends data in the form of packets of fixed length. Noise in the communication channel may cause a packet to be received incorrectly. If this happens, then the packet is retransmitted. Let the proba ...

  • 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