Mathematics, 07.03.2020 05:40 kemellgwilson
Conveyor Belt Motors (20 points) The brushes in the motors that control the conveyor belts at Delectable Delights need to be replaced periodically. Since there are many conveyor belts through the buildings, a supply of brushes is always kept on hand. The brushes come in shipments of 1000 from a supplier who claims that no more than 2% will be defective. Out of each shipment, a random sample of 10 brushes is selected for testing. If there are any defective brushes in the sample, the shipment will be rejected. Let X be the number of defective brushes in a sample of size 10. (a) Could the random variable X be considered a Binomial random variable? Justify your answer using the properties of a Binomial random variable from page 88 in the lecture guide. (5 points) (b) Regardless of your answer in part (a), assume that X is a Binomial random variable. Write out the sample space for X. What are the values of the parameters n and p? (5 points) (c) Calculate the mean and standard deviation for X. Show your calculations and round your answers to two decimal places if necessary. (5 points) (d) Calculate the probability that a shipment will be rejected. Show your work by substituting values into the appropriate formula. Include probability notation in your answer. (5 points)
Answers: 3
Mathematics, 21.06.2019 19:30, gwendallinesikes
Use multiples to write two fractions equivalent to 7/9. 14/18, 8/10 6/8, 21/27 10/12, 28/36 14/18, 21/27
Answers: 1
Mathematics, 21.06.2019 20:00, Chen5968
The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?
Answers: 2
Mathematics, 21.06.2019 20:00, maddie53116
Formulate alisha has a number in mind. if she adds three to her number the result is less than five. use this information to write and solve an inequality about alisha's number. then graph the solution set.
Answers: 1
Mathematics, 21.06.2019 20:30, esnyderquintero
Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.
Answers: 3
Conveyor Belt Motors (20 points) The brushes in the motors that control the conveyor belts at Delect...
English, 08.04.2020 23:10
Chemistry, 08.04.2020 23:10
Spanish, 08.04.2020 23:10
Mathematics, 08.04.2020 23:10
Mathematics, 08.04.2020 23:10