Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

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

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

(b) Ninety-five percent of the time total clean-up time will fall in what interval about the mean?

State the lower and upper limits of interval.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M916956

Have any Question? 


Related Questions in Statistics and Probability

Data interpretationresearch reportyour taskwrite a report

Data Interpretation Research Report Your task: Write a report on the statistical relationship that you find between the stock price of the company that you have been assigned and the following three variables: the FTSE, ...

1 true or false justify for

1. True or False. Justify for fullcredit. (a) A is an event, and Ac is the complement of A, then P(A AND Ac ) =0. (b) If the variance of a data set is 0, then all the observations in this data set must bezero. (c) If a 9 ...

1 when do researchers use regression analysis2 what is

1. When do researchers use regression analysis? 2. What is multiple regression analysis? 3. Distinguish among simultaneous (or standard), stepwise, and hierarchical regression.

Imagine that you are interested in the effects of

Imagine that you are interested in the effects of background music on people's performance at work. Design an experiment in which you test the effects of classical music (played at various decibels) on employees job ...

Corrections for phase 4in confidence interval calculations

CORRECTIONS FOR PHASE 4 In confidence interval calculations, sqrt(364) goes in the bottom for E; this has thrown off your intervals - too narrow; t should be negative in the hypothesis test, but your conclusion is correc ...

One of the initial clinical trials of the anti-math anxiety

One of the initial clinical trials of the anti-math anxiety drug SHOVITALL TM tested for the presence of headaches as a side effect. In the trial, 450 subjects were treated with 80mg of the drug, and 2.2% of the subjects ...

Within a forensic investigation a sample was independently

Within a forensic investigation, a sample was independently analyzed for lead content by two different laboratories, Lab 1 and Lab 2. The analysis that was performed on this sample by Lab 1 yielded a coefficient of varia ...

Consider rolling a fair 6-faced die twice let a be the

Consider rolling a fair 6-faced die twice. Let A be the event that the sum of the two rolls is atmost 6, and B be the event that the first one is an even number. (a) What is the probability that the sum of the two rolls ...

Questions1 the following results were observed in a

QUESTIONS: 1. The following results were observed in a prospective study of the drug Viagra (based on data from Pfizer Inc.)  Use the data to answer the following questions:   Viagra Treatment Placebo Headache 117 29 No ...

An airline estimates that 92 of people booked on their

An airline estimates that 92% of people booked on their flights actually show up. If the airline books 76 people on a flight, find the propability that exactly 73 people will show up. for which the maximum number is 74, ...

  • 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