Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Lower and upper limits of the interval using Empirical Rule.

The clean-up crew of a medium-sized firm has an average clean-up time of 72.0 total hours with a variance of 64 hours squared. The clean-up times are bell-shaped.

(a) What proportion of the time will it take the clean-up crew 56 or more hours for cleaning the plant?

(b) Ninety-five percent of time the total clean-up time will fall within what interval about the mean?
Status the lower and upper limits of the interval.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M918373

Have any Question? 


Related Questions in Statistics and Probability

A car dealership has 8 red 13 silver and 5 black cars on

A car dealership has 8 red, 13 silver and 5 black cars on the lot. Ten cars are chosen randomly to be displayed in front of the dealership. Find the probability that 4 cars are red and the rest are silver. Find the proba ...

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 ...

Researchers are interested in determining if men and womens

Researchers are interested in determining if men and women's hearts tend to be different sizes. In a sample of 12 males, the mean diameter of the heart was 13.21 cm with a standard deviation of 1.05. Among 9 females, the ...

Reading journal assignment stage iifor this portion of the

Reading Journal Assignment Stage II For this portion of the journal, you will create five journal entries, each addressing the prompts given below. Each entry will be one page in length, double spaced, with 12 point font ...

Consider the following gameyou pay 100 and a fair 6-sided

Consider the following game. You pay $1.00 and a fair 6-sided die is rolled. If the roll is 1 or 3, then you get your dollar back and the game ends. If the roll is 5, you get $2.00 back (your dollar plus an additional do ...

An insurance company checks police records on 1200 randomly

An insurance company checks police records on 1200 randomly selected auto accidents and notes that teenagers were at the wheel in 180 of them. Construct a 90% confidence interval estimate of the proportion of auto accide ...

Using the standard normal distribution tables what is the

Using the standard normal distribution tables, what is the area under the standard normal curve corresponding to Z

Measures of central tendency summative taskon a separate

Measures of Central Tendency Summative Task On a separate paper hand out the solution of the two parts of the investigation: Part One - Use the given data set to solve the following problems: 50, 55, 60, 60,70, 80 A. Fin ...

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 ...

Some accounting firms give the client an option to pay a

Some accounting firms give the client an option to pay a fee when the tax return is completed that guarantees tax advices and support from the accountant if the client were audited. A large accounting firm is trying to d ...

  • 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