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Three-dimensional (3D) printing is a manufacturing technology that allows the production of three-dimensional solid objects through a meticulous layering process performed by a 3D printer. 3D printing has rapidly become a time-saving and economical way to create a wide variety of products such as medical implants, furniture, tools, and even jewelry. The article "Process Capability Analysis of Cost Effective Rapid Casting Solution Based on Three Dimensional Printing" (MIT Intl. J. Mech. Engr., 2012: 31-38) considered the production process of metal castings by using a 3D printer. Data was collected on 16 batches (each having two castings), where the outer diameter of each casting (in mm) was recorded. The target diameter of each casting was 60 mm. The resulting data is given here:
Apply the supplemental rules suggested in the text to the data. Are there any out-of-control signals?
Find out the p-value associated with test of hypothesis you conducted?
Obtain a 95% con?dence interval estimate of the mean recovery. What assumptions do we need to make? Test for these assumptions.
We investigate if a period of time feels longer or shorter when people are bored compared to when they are not bored. Using independent samples, we obtain these estimates of the time period (in minutes):
During 2007, sales of new, privately owned homes in the total United States and in the western states were broken down into price categories as follows:
Compare two models. Model #1 has an r-squared of .25 and an adjusted r-squared of .10. Model #2 has an r-squared of .20 and an adjusted r-squared of .14. Given this information, what model should you use?
test 1perform the following two-tailed hypothesis test using a .05 significance levelintrinsic by genderstate the null
I want to see two methods are the significantly same or not. Each methods has 5 variables are inside. so I would like to see each 5 variables from methods A and B are significantly the same and overall the two methods are significantly same or not..
Factor the polynomial completely. Factor each completely given that the binomial following it is a factor of the polynomial.
1. suppose a realtor is interested in comparing the asking prices of homes in philadelphia and baltimore. a random
Compare equations with one variable to equations with two variables. How are they alike? How are they different? What if an equation had three variables?
How long do you exactly need to complete the other question asked? It is very critical for me.
a coefficient of determination of 0.9 shows that 10 of variation in the dependent variable is caused by change in the
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