Will rate!! A company utilices two different machines to manvufacture parts of a certain type. During...
Two different types of injection- moulding machines are used to form plastic parts. A part is considered defective if it has excessive shrinkage or is discoloured. Two random samples, each of size 300, are selected, and 15 defective parts are found in the sample from machine 1, and 8 defective parts are found in the sample from machine 2. Is it reasonable to conclude that both machines produce the same fraction of defective parts, using a 0.05, find the value...
Two different types of injection-molding machines are used to form plastic parts. A part is considered defective if it has excessive shrinkage or is discolored. Two random samples, each of size 300, are selected and 15 defective parts are found in the sample from machine 1 and 8 defective parts are found in the sample from machine 2. What type of hypothesis test should you use to determine if both machines produce the same fraction of defective parts? Group of...
summary statistics. Here, we are going to work the other way around: given a boxplot we will obtain the summary statistics Suppose that we have the times that it took 25 students from OSU to run a mile in the form of the following bexplot Sample of OSU students Mile Times (2 points) Fill in the summary statistics in the following table. Note: we are only able to approximately obtaln the summary statisties from the graph so do your best...
Two different types of injection-moulding machines are used to form plastic parts. A part is considered defective if it has excessive shrinkage or is discolored. Two random samples, each of size 300, are selected, and 20 defective parts are found in the sample from machine 1, and 8 defective parts are found in the sample from machine 2. Construct a 99% lower bound on the difference in the two fractions (p1-p2). Please report your answer to 3 decimals.
please help me compute ALL parts C and D Consider the following observations on shear strength (MPa) of a joint bonded in a particular manner 22.8 40.4 16.4 726 36.6 108.2 0.0 4.4 33.1 667 81.5 (a) What are the values of the fourths? (Enter your answers to two decimal places.) lower fourth 26.4 MPa MPe upper fourth 69.65 What is the value of f? 4325MPa (b) Construct a boxplot based on the five-number summary. 20 40 60 80 100...
Question 3 1 pts Two different types of injection-molding machines are used to form plastic parts. A part is considered defective if it has excessive shrinkage or is discolored. Two random samples, each of size 300, are selected and 15 defective parts are found in the sample from machine 1 and 8 defective parts are found in the sample from machine 2. What type of hypothesis test should you use to determine if both machines produce the same fraction of...
Two different types of injection-molding machines are used to form plastic parts. A part is considered defective if it has excessive shrinkage or is discolored. Two random samples, each of size 300, are selected, and it was found that p1 -0.05 and p2 -0.01. Is it reasonable to conclude that both machines produce the same fraction of defective parts, using alpha = 0.057 Determine the sample size needed to detect this difference with a probability of at least 0.9 Use...
Question Completion Status: QUESTION 3 A manager must decide how many machines of a certain type to buy. The machines will be used to manufacture a new gear for which there is increased demand. The manager has narrowed the decision to two alternatives: buy one machine or buy two. If only one machine is purchased and demand is more than it can handle, a second machine can be purchased at a later time. However, the cost per machine would be...
Assignment problem and branch and bound A factory produces a certain type of car parts. There are four alternative machines that can be used for the production of the car parts from start to finish. Each of the machines needs to be controlled by an individual operator. The operators have different efficiencies on different machines. The table below shows how many car parts the individual operators produce in average per day. Furthermore, this table shows how many erroneous parts the...
Two machines produce metal parts. The mean of the weight of these parts is of interest. The following data have been collected Machine 1 N 30 x(dash) = 0.984 σ 3.67 Machine 2 n 35 x (dash) 0.907 σ 3.11 a. Do both machines produce parts with a statistical same mean weight? State your null and alternative hypothesis, and use a 1% level of significance. b. If we want the confidence interval to have a half width of 0.05, how...