Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Inverse probability based on the normal distribution.

1. In a random sample of eight military contracts involving cost overruns, the following information was obtained. x = big price of the contract (in millions of dollars) and y = cost of overrun (expressed as a percent of the bid price).

 

x

6

10

3

5

9

18

16

21

y

31

25

39

35

29

12

17

8

 

If an overrun contract was bid at 12 million dollars, what does the least-squares line find out for the cost of overrun (as a percent of bid price)?

 

2. Let x be a random variable that represents the length of time it takes a student to prepare a term paper for Dr. Adam's Sociology class. After interviewing many students, it was found that x has an approximately normal distribution with mean μ = 6.8 hours and standard deviation σ = 2.1 hours. 0 ≤ z ≤ 2

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M919958

Have any Question? 


Related Questions in Statistics and Probability

1 what advantage do experiments have over descriptive and

1. What advantage do experiments have over descriptive and correlational studies? 2. A well-designed experiment possesses what three characteristics? 3. Distinguish between qualitative and quantitative levels of an indep ...

A researcher collected sample data for women ages to the

A researcher collected sample data for women ages to. The sample had a mean serum cholesterol level (measured in mg/100 mL) of , with a standard deviation of. Assuming that serum cholesterol levels for women ages to are ...

An economist wants to estimate the mean per capita income

An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in Texas. He believes that the mean income is $23.8, and the standard deviation is known to be $8.9. How large of a sam ...

1 if the calculated value of t is less than the critical

1. If the calculated value of t is less than the critical value, do you reject or fail to reject the null hypothesis? Explain. 2. If you reject the null hypothesis (and conclude that the independent variable has an effec ...

Listed below is a list of how long it takes for bands on

Listed below is a list of how long it takes for bands on stage to complete their first song (in seconds). 538 312 327 309 344 313 318 315 325 331 312 314 What is the mean time it takes for bands on stage to complete thei ...

Objectivenbspstudents will assume the identity of a person

Objective:  Students will assume the identity of a person living in the north or south during the Civil War and provide a personal experience in the form of a letter. Most of what we know of history prior to technologica ...

The premise a few years have passed and your survivor group

The premise: a few years have passed, and your survivor group has grown due to the merger with another group of survivors. You still maintain the position as the intellectual of the group because you are a historian.  Al ...

A system has two components that operate in parallel at

A system has two components that operate in parallel. At least one of the components must function properly if the system is to function properly. The probabilities of failures for the components 1 and 2 during one perio ...

John is an avid fisherman and wants to know if there is a

John is an avid fisherman and wants to know if there is a correlation between the amount of time he spends fishing and the amount of fish he catches. He decided to keep track of the time he spent at the lake and the amou ...

A random sample of the price of gasoline from 20gas

A random sample of the price of gasoline from 20gas stations in a region gives the statistics below. Complete parts a) and b) ybar = $3.59, s = $0.24 a) Find a 95% confidence interval for the mean price of regular gasoli ...

  • 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