stastics
posted by mary .
a car dealer estimates that they sell two cars on average per week. they only have space in their showroom for 4 cars. if stock replacement cannot take place within a week, what is the probability assuming that weekly car sales follow a poisson distribution that, the dealer will run out of stock in any one week?
question 2
the table below presents data relating the number of weeks of experience in a job involving the wiring of maniature electronic components an d the number of components which were rejected during the past week for 12 randomly selected wokers
weeks of experience #of rejects
7 26
9 20
6 28
14 16
8 23
12 18
10 24
4 26
2 38
11 22
1 32
8 25
determine the regression equation for predicting the number of components rejected given the number of weeks experience.
1.2 estimate the number of components rejected for an employee with three weeks experience in the job.
1.23 determine the value of the correlation coeffient and comment on this value
Mary: you have asked a lot of questions. I am reluctant to give you the answers as that would be just doing your homework. So, do some research, then take a shot.
(EXCEL or some other statistical software package is very helpful with these types of problems.)
For #1, use a Poisson distribution formula.
Poisson distribution (m = mean):
P(x) = e^(m) m^x / x!
For #2, see your previous post on your other regression and correlation problem for some hints on how to do this one (if you need to do this by hand). If not, as others have suggested, you can use easier methods.
Respond to this Question
Similar Questions

Word Problem Maximizing A Bonus
Pauline Wong spends 4 hours selling a used car and 6 hours selling a new car. She works no more than 40 hours per week. In order to receive a bonus, she must sell at least one used car and four new cars each week. In that case, she … 
Math
The chart shows the number of cars sold per week at a car dealership during the month of June. Salesperson Week 1 Week 2 Week 3 Week 4 Tim 4 8 2 1 Geena 1 2 7 1 Rafael 2 1 5 4 Sonny 4 1 1 10 How should the data be displayed to make … 
mathprobability
uppose that cars arrive at a traffic light according to a Poisson process with a rate of one car per minute starting from time t = 0 minutes. Determine a. The probability that no cars arrive in the rst two minutes. b. The probability … 
math
A car dealer has 30 cars and trucks. If 2 more cars are delivered, the dealer will have 3 times as many cars as trucks. How many does trucks does the dealer presently have? 
Math
A family has two cars. The first car has a fuel efficiency of 40 miles per gallon of gas and the second has a fuel efficiency of 30 miles per gallon of gas. During one particular week, the two cars went a combined total of 1250 miles, … 
Math
A family has two cars. The first car has a fuel efficiency of 40 miles per gallon of gas and the second has a fuel efficiency of 30 miles per gallon of gas. During one particular week, the two cars went a combined total of 1250 miles, … 
Math
Hello, I need to use a matrix to solve this but am stumped on how to do it. All I need is a little nudge to push me in the right direction. Please help. Thank you You have been hired as a consultant for Crazy Al’s Car Rentals, a … 
Math
Hello, I need to use matrices in order to solve this problem but I am having a hard time getting started with the problem. I just need a little push to nudge me in the right direction. Please help. Thank You. You have been hired as … 
math
A family has two cars. The first car has a fuel efficiency of 30 miles per gallon of gas and the second has a fuel efficiency of 25 miles per gallon of gas. During one particular week, the two cars went a combined total of 1275 miles, … 
Math
Please Help! The number of cars sold weekly by a new automobile dealership grows according to a linear growth model. The first week the dealership sold five cars (P0=5 ). The second week the dealership sold cars (P1=12 Pn = Pn−1+7 …