Before bidding on a contract a contractor wants to be 90

Reference no: EM13620910

Before bidding on a contract, a contractor wants to be 90% confident that he is in error by less than 20 minutes in estimating the average time it takes a certain kind of cement to dry. If the standard deviation of the time it takes to dry can be assumed to be 75 minutes, on how large a sample should he base the estimate?

Reference no: EM13620910

Questions Cloud

If discretionary expenses are 500 cash flow before : if discretionary expenses are 500 cash flow before discretionary expenses are 2000 and discretionary capital

Sidney took a 775 cash advance by using checks linked to : sidney took a 775 cash advance by using checks linked to her credit card account. the bank charges a 3 percent cash

A 7300 n man carrying a 19 kg physics textbook stands at : a 730.0 n man carrying a 1.9 kg physics textbook stands at the center of a frozen pond of radius 10.0 m. he is unable

A beam has a solid square cross section of 100mm and simply : a beam has a solid square cross section of 100mm and simply supported by two supports 3 metres apart. calculate the

Before bidding on a contract a contractor wants to be 90 : before bidding on a contract a contractor wants to be 90 confident that he is in error by less than 20 minutes in

Barrett industries invests a large sum of money in rampd as : barrett industries invests a large sum of money in rampd as a result it retains and reinvests all of its earnings. in

A major concern associated with a main steam line pipe : a major concern associated with a main steam line pipe break at a pwr is a return to power even if the reactor scrams

Crude oil of specific gravity 086 is to be pumped at 20c : crude oil of specific gravity 0.86 is to be pumped at 20c. what is the min pipe size that can be used in order to

Being normally distributed with a mean of 165 ounces and a : the amount of corn chips dispensed into a 16-ounce bag by the dispensing machine has been identified asbeing normally

Reviews

Write a Review

Required(*) Message

Basic Statistics Questions & Answers

Statistics-probability assignment

MATH1550H: Assignment: Question: A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

What is the least number

MATH1550H: Assignment: Question: what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

Determine the value of k

MATH1550H: Assignment: Question: Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

Binomial distributions

MATH1550H: Assignment: Questions: Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

Estimate the population mean

Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

Find out the probability

Linear programming models

LINEAR PROGRAMMING MODELS

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

User Account

All Pages