Yaschin (1992) studied the thickness of metal wires produced in a chip-manufacturing process. Ideally, these wires should have a mean target thickness of 8 microns. The sample data are given below
Yaschin (1992) studied the thickness of metal wires produced in a chip-manufacturing process. Ideally, these wires...
#2 Consider the followi ng sample of 44 observations: 8.9: 12.4: 8.6: 11.3; 9.2; 8.8;8.8; 6.2; .07; 7.1; 8; 10.7; 7.6; 9.1; 9.2; 8.2; 9.0; 8.7; 9.1; 10.9;10.3; 9.6; 7.8; 11.5; 9.3; 7.9; 8.8; 12.7; 8.4; 7.8; 5.7; 10.5; 10.5; 9.6; 8.9;10.2; 10.3; 7.7; 10.6; 8.3; 8.8; 9.5; 8.8; 9.4. 1. Find the mean and the standard deviation for the data given. We were unable to transcribe this image
In West Texas, water is extremely important. The following data represent pH levels in ground water for a random sample of 102 West Texas wells. A pH less than 7 is acidic and a pH above 7 is alkaline. Scanning the data, you can see that water in this region tends to be hard (alkaline). Too high a pH means the water is unusable or needs expensive treatment to make it usable.t These data are also available for download at...
The following data represent soil water content (percentage of water by volume) for independent random samples of soil taken from two experimental fields growing bell peppers. Soil water content from field I: x1; n1 = 72 15.2 11.3 10.1 10.8 16.6 8.3 9.1 12.3 9.1 14.3 10.7 16.1 10.2 15.2 8.9 9.5 9.6 11.3 14.0 11.3 15.6 11.2 13.8 9.0 8.4 8.2 12.0 13.9 11.6 16.0 9.6 11.4 8.4 8.0 14.1 10.9 13.2 13.8 14.6 10.2 11.5 13.1 14.7 12.5...
4.3 Analysis Assignment #4 Note 1: all assignments moving forward must adhere to the appropriate Six Step Process (SSP). As our study materials have specified, the SSP has 3 versions. Version 1 is to be used for all t-tests; for all correlation analyses and Version 3 is be used for all regression analyses. Note 2: The data sets for Q1, Q2 and Q3 below can be downloaded here. Week 4 Analysis Assignments.xlsx Q1: (30 points) Complete the following data analysis:...