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Probability

The restaurant in a large commercial building provides coffee for the building's occupants. The restaurateur has determined that the mean number of cups of coffee consumed in a day by all the occupants is 2.0 with a standard deviation of .6. A new tenant of the building intends to have a total of 125 new employees. What is the probability that the new employees will consume more than 240 cups per day?

The restaurant in a large commercial building provides coffee for the building's occupants. The restaurateur has determined that the mean number of cups of coffee consumed in a day by all the occupants is 2.0 with a standard deviation of .6. A new tenant of the building intends to have a total of 125 new employees. What is the

Binomial Distribution

A recent survey indicated that 82% of single women aged 25 years old will be married in their lifetime. Using binomial distribution find the probability that 2 or 3 women in a sample of 20 will never be married.

Probability - An industrial chemical to retard the spread of fire in paint has been developed. From past experience, 48% of sales calls will result in an order. a) What is the probability that the first order will come on the fourth sales caqll of the day? ...

An industrial chemical to retard the spread of fire in paint has been developed. From past experience, 48% of sales calls will result in an order. a) What is the probability that the first order will come on the fourth sales caqll of the day? b) If eight sales calls are mad in a day, what is the probability of receiving ex

Probability - A production process manufacturers alternators. On the average, 1% of the alternators will not perform properly when tested in the plant. When a large shipment of alternators is received at the plant, 100 are tested, and, if more that 2 are defective, the shipment is returned to the manufacturer. What is the probability of returning a shipment?

A production process manufacturers alternators. On the average, 1% of the alternators will not perform properly when tested in the plant. When a large shipment of alternators is received at the plant, 100 are tested, and, if more that 2 are defective, the shipment is returned to the manufacturer. What is the probability of retur

Axline Computers manufactures personal computers at 2 plants. ...

Axline Computers manufactures personal computers at 2 plants. The Texas plant has 40 employees, the Hawaii plant has 20. A random sample of 10 employees is to be asked to fill out benefit questionnaires. A. What is the probability that none of the employees in the sample work at the plant in Hawaii? B. What is the probab

Research design, probability, discrete and continuous distributions - 1. A small business owner is experiencing a high staff turnover and wants to design a study to investigate the problem. Please identify following elements of this research study. ... 2. Sara scored 75 in a statistics exam. The group mean was 70 and the standard deviation of the scores was 5. ...

1. A small business owner is experiencing a high staff turnover and wants to design a study to investigate the problem. Please identify following elements of this research study. a. Research problem b. Research design c. Hypothesis to be tested d. Data collection methods e. Unit of analysis 2. Sara scored 75 in a stat

Comparing z-scores and probability

Please see the attached file. 1. An article in USA Today stated that "Internal surveys paid for by directory assistance providers show that even the most accurate companies give out wrong numbers 15% of the time." Assume that you are testing such a provider by making 10 requests and also assume that the provider gives the wro

Probability and statistics - 1 Flying approximately 40 billion passenger -miles per month , US airlines average a bout 4 fatalities per month . Assume that probability distribution for X , the number of fatalities per month , can be approximated by a Poisson probability distribution . What is the probability that more than two fatalities will occur in September 2007.

1 Flying approximately 40 billion passenger -miles per month , US airlines average a bout 4 fatalities per month . Assume that probability distribution for X , the number of fatalities per month , can be approximated by a Poisson probability distribution . What is the probability that more than two fatalities will occur in Sept

If the probability of a snow storm producing over 20 inches of snow in Easton, PA in a given winter is .33, what is the probability that over a period of 10 winters-they will have had 2 winters with such a storm?

4a. If the probability of a snow storm producing over 20 inches of snow in Easton, PA in a given winter is .33, what is the probabilty that over a period of 10 winters-they will have had 2 winters with such a storm? (Note-by using the binomial distribution for this problem, we're assuming that a success is a winter with a snowst

Probability

A) In a (poorly run) widget factory, it is known that 25% of all products off the line will be defective. A random sample of 5 widgets is taken on a certain day. What is the probability that all of the widgets are defective? What is the probability that none are defective? B) A coin is flipped 5 times in a row. What is t

Statistics - Probability - Runzheimer International, a management consulting firm specializing in transportation reimbursement, released the results of a survey on July 28, 2005. It indicated that it costs more to won a car in Detroit, an amazing $11,844 a year for a mid-sized sedan, ... [See the attached question file.]

Runzheimer International, a management consulting firm specializing in transportation reimbursement, released the results of a survey on July 28, 2005. It indicated that it costs more to won a car in Detroit, an amazing $11,844 a year for a mid-sized sedan, than in any other city in the country. The survey revealed that insuranc

Coin Toss- Fair Game A game is fair if the expected value of the game is 0. For example, consider the following wager in which you toss a fair coin and win $1 if heads appears and lose $1 if tails appears. The EMV = 0.50*1 + 0.5*(-1) = 0. Now,consider the following wager where you are given a fair coin which you toss twice. If two heads appear, you win $3.00. Otherwise, you lose $1.00. Is this game fair? Explain your answer.

A game is fair if the expected value of the game is 0. For example, consider the following wager in which you toss a fair coin and win $1 if heads appears and lose $1 if tails appears. The EMV = 0.50*1 + 0.5*(-1) = 0. Now,consider the following wager where you are given a fair coin which you toss twice. If two heads appear,

Probability

The long distance calls made by the employees of a company are normally distributed with a mean of 6.3 minutes and a standard deviation of 2.2 minutes. find the probability that a call a. lasts between 5 and 10 minutes b. lasts more than 7 minutes c. lasts less than 4 minutes

Probability: The weekly output of a steel mill is a uniformly distributed random variable that lies between 110 and 175 metric tons. a.Compute the probability that the steel mill will produce more than 150 metric tons next week. b.Determine the probability that the steel mill will produce between 120 and 160 metric tons next week.

The weekly output of a steel mill is a uniformly distributed random variable that lies between 110 and 175 metric tons. a.Compute the probability that the steel mill will produce more than 150 metric tons next week. b.Determine the probability that the steel mill will produce between 120 and 160 metric tons next week.