# Jason L

Most popular questions and responses by Jason L-
## Statistics

In the following cross tab or contingency table the favorite sport of 50 university students is cross classified with the gender of the respondent, What is the probability of 1 - P(female or basebal) and 2 - (football/male)

*asked on February 26, 2007* -
## Stats

2 samples were collected to determine whether there was a difference between two weight loss methods targeting men. The average weight loss method is provided for the 2 samples along with the respective standard deviations. Is the second method - with an

*asked on February 23, 2007* -
## Statistics

A building contractor claims that they can renovate a 200 sq foot kitchen and dining room in 40 work hours plus minus 5 (the mean and standard deviation respectively). The work includes plumbing, electrical installation, cabinets, flooring, painting and

*asked on March 2, 2007* -
## Statistics

An entertainment company owns and operates movie theaters in Wyoming. The president of the company is concerned that film rentals are hurting the business. They directed a staff member to estimate the total number of films rented by households in wyoming

*asked on March 2, 2007* -
## Statistics

A specially equipped trauma emergency room at a hospital has been in operation for 40 weeks and has been used a total of 108 times. Assuming the weekly pattern of demand for this facility is poisson compute the following - probability room is not used in a

*asked on March 2, 2007* -
## Statistics

It is known that the amount of time needed to change the oil in a car is normally distributed with a standard deviation of 5 minutes. A random sample of 100 oil changes yielded a sample mean of 22 minutes. Compute the 99% confidence interval estimate of

*asked on February 26, 2007* -
## Statistics

part 2 - An entertainment company owns and operates movie theaters in Wyoming. The president of the company is concerned that film rentals are hurting the business. They directed a staff member to estimate the total number of films rented by households in

*asked on March 2, 2007* -
## Statistics

A bottling company uses a filling machine to fill glass bottles with mango juice. The bottles are supposed to contain 300 milliliters (ml). In fact the amounts vary according to a normal distribution with mean = 298 and standard dev = 3 ml. What is the

*asked on March 2, 2007* -
## Statistics

A bottling company uses a filling machine to fill glass bottles with mango juice. The bottles are supposed to contain 300 milliliters (ml). In fact the amounts vary according to a normal distribution with mean = 298 and standard dev = 3 ml. What is the

*asked on March 2, 2007* -
## Statistics

Wrong tire pressure can increase tire wear and decrease gas mileage. A manufacturer of new tires tested the tire for wear at different pressures with the below results. Tire pressure (PPI:pounds per square inch) is related to how many miles a tire lasts,

*asked on February 26, 2007* -
## Statistics

part 2 - An entertainment company owns and operates movie theaters in Wyoming. The president of the company is concerned that film rentals are hurting the business. They directed a staff member to estimate the total number of films rented by households in

*asked on March 2, 2007* -
## Statistics

A local company has been in trouble recently over hiring male applicants rather than female. Recently 3 employees hired were all male even though the six applicants for the 3 positions included 3 females. The company claims that they have shaped up. From a

*asked on February 26, 2007* -
## Statistics

In a particular suburb 30% of housholds have installed electronic security systems. If 2 households are chosen at random from this area, what is the probability that neither has installed a security system? Using the binomial probability function for this

*asked on February 26, 2007* -
## Statistics

Below Find a sequence of probabilites generated using excel.What is this mystery poisson functions M? Be precise, down to one decimal and show work.

*asked on March 8, 2007* -
## Statistics

A company claims that no more than 5% of a particular product has a defect. In a shipment of 15 units what is the probability of receiving 3 or 4 defective units? You can probably use a binomial probability function for this problem. P(x) =

*asked on February 26, 2007* -
## Stats

It is known that the amount of time needed to change the oil in a car is normally distributed with a standard deviation of 5 minutes. A random sample of 100 oil changes yielded a sample mean of 22 minutes. Compute the 99% confidence interval estimate of

*asked on February 26, 2007* -
## Statistics

A survey of community banks asked about the loan to deposit ratio (LTDR) a banks total loans as a percent of its total deposits. The mean LTDR for the 110 banks in the sample is xbar = 76.7 and the standard deviation is s = 12.3. In the text a 95%

*asked on February 26, 2007* -
## Statistics

A paper manufacturer claims that fewer than 1 in 100 of its reels (2 ton rolls) of paper is flawed. A customer has just received a large shipment of these reels and proceeds to check a random sample of 600 of them for flaws. Of this sample, 14 reels are

*asked on February 26, 2007* -
## Statistics

A paper manufacturer claims that fewer than 1 in 100 of its reels (2 ton rolls) of paper is flawed. A customer has just received a large shipment of these reels and proceeds to check a random sample of 600 of them for flaws. Of this sample, 14 reels are

*asked on February 26, 2007* -
## Statistics

Below Find a sequence of probabilites generated using excel. What is this

*asked on March 7, 2007* -
## Statistics

What key problems can a supermarket address and solve utilizing the poisson/exponential combination?

*asked on March 7, 2007* -
## Statistics

A manufacturer has observed that a certain product tends to fail either very early in its life span or quite late. The engineers are interested in studying a particular product going into cellular phones. They know that the average life span of the product

*asked on March 7, 2007* -
## Statistics

It is known that the amount of time needed to change the oil in a car is normally distributed. A random sample of 100 oil changes yielded a sample mean of 22 minutes and a standard deviation of 5 minutes. Then compared to the interval estimate for the

*asked on February 26, 2007* -
## Stats

the director of an insurance companies computing center estimates that the companies computer has a 20% chance of catching a computer virus. However they feel that there is only a 6% chance of the computers catching a virus that will completely disable the

*asked on February 23, 2007* -
## Statistics

In a study that was highly published doctors discovered that aspirin helps prevent heart attacks. The research project which was scheduled to last 5 years employed 22,000 american physicians (all male). Half took an aspirin tablet 3 times a week while the

*asked on February 23, 2007*