call center, calls come in at an average rate of one call every two minutes. Assume that the time that elapses from one call to the next has the…

call center, calls come in at an average rate of one call every two minutes. Assume that the time that elapses from one call to the next has the exponential distribution. please Find the value that separates the top 10%.

A psychologist believes that 80% of male drivers, when lost, continue to drive, hoping to find the location they seek rather than ask directions.

A psychologist believes that 80% of male drivers, when lost, continue to drive, hoping to find the location they seek rather than ask directions. To examine this belief, he took a random sample of 360 male drivers and asked each what they did when lost. If the belief is true, what is the probability that less than 75% said they continue driving? and  For a sample of 320 male drivers, what is the interquartile range for the sample proportion?

A psychologist believes that 80% of male drivers, when lost, continue to drive, hoping to find the location they seek rather than ask directions.

A psychologist believes that 80% of male drivers, when lost, continue to drive, hoping to find the location they seek rather than ask directions. To examine this belief, he took a random sample of 360 male drivers and asked each what they did when lost. If the belief is true, what is the probability that less than 75% said they continue driving? and  For a sample of 320 male drivers, what is the interquartile range for the sample proportion?

The highway department is interested in the proportion of vehicles on Interstate 35 between the hours of midnight and 5: that are 18-wheel tractor…

The highway department is interested in the proportion of vehicles on Interstate 35 between the hours of midnight and 5:00 a.m. that are 18-wheel tractor trailers. It has been found that this proportion is about 26.63%. If a random sample of 288 vehicles is taken, then what is the probability that between 27 percent and 33 percent of these vehicles will be tractor trailers?

Subject : Linear regression question In August of the current year, a car dealer is trying to determine how many cars of the next model year to…

Subject : Linear regression question In August of the current year, a car dealer is trying to determine how many cars of the next model year to order. Each car ordered in August costs $20,000. The demand for the dealer’s next year models has the probability distribution shown in the file attached.xlsx. Each car sells for $25,000. If demand for the next year’s cars exceeds the number of cars ordered in August, the dealer must reorder at a cost of $22,000 per car. Excess cars can be disposed of at $17,000 per car. Please use simulation to determine how many […]