Publications by Muneeb
Homework - Week 2
Question 2.24 Two machines are used for filling plastic bottles with a net volume of 16.0 ounces. The filling processes can be assumed to be normal, with standard deviation of σ1 = 0.015 and σ2 = 0.018. The quality engineering department suspects that both machines fill to the same net volume, whether or not this volume is 16.0 ounces. An expe...
5420 sym R (2695 sym/17 pcs) 3 img
Assignment 2
Males a<-read.csv("https://raw.githubusercontent.com/tmatis12/datafiles/main/normtemp.csv") M<-a[1:65,3] ## minimum of heartrate min(M) ## [1] 58 ## maximum of heartrate max(M) ## [1] 86 ## mean of heartrate mean(M) ## [1] 73.36923 ## Standard deviation of heartrate sd(M) ## [1] 5.875184 ## median of heartrates median(M) ## [1] 73 ## Quali...
86 sym R (1605 sym/30 pcs) 5 img
Test File - Lec 5
You can put chunks of R code by putting three backticks at the beginning and end of the chunk. You need to give each chunk a unique name in the {} Echo The echo command tell R whether or not to print the code that generated the result. Here is an example with echo=FALSE ## [1] 0.8842753 and here is an example with echo=TRUE x<-rnorm(100) y<-2*x...
2047 sym R (1731 sym/9 pcs) 1 img
Homework - Week 3
Question 2.32 The diameter of a ball bearing was measured by 12 inspectors, each using two different kinds of calipers. Part a. Is there a significant difference between the means of the population of measurements from which the two samples were selected? Use a=0.05 Part b. Find the P-value for the test in part (a). Part c. Construct a 95 pe...
4325 sym R (2978 sym/24 pcs) 10 img
Homework - Week 4
Question 3.7 The tensile strength of Portland cement is being studied. Four different mixing techniques can be used economically. A completely randomized experiment was conducted and the data were collected. Part a. Test the hypothesis that mixing techniques affect the strength of the cement. Use a=0.05. Null Hypothesis: Ho: mu1 = mu2 = mu3 = ...
2740 sym R (2641 sym/45 pcs)
Homework - Week 7
Question 4.3 A chemist wishes to test the effect of four chemical agents on the strength of a particular type of cloth. Because there might be variability from one bolt to another, the chemist decides to use a randomized block design, with the bolts of cloth considered as blocks. She selects five bolts and applies all four chemicals in random or...
3380 sym R (1866 sym/7 pcs)
Homework - Week 11
Question 6.8 A bacteriologist is interested in the effects of two different culture media and two different times on the growth of a particular virus. He or she performs six replicates of a 22 design, making the runs in random order. Analyze the bacterial growth data that follow and draw appropriate conclusions. Analyze the residuals and comment...
7892 sym R (19775 sym/71 pcs) 33 img
Homework - Week 14
Question 14.3 A manufacturing engineer is studying the dimensional variability of a particular component that is produced on three machines. Each machine has two spindles, and four components are randomly selected from each spindle. The results follow. Analyze the data, assuming that machines and spindles are fixed factors. This is a Nested des...
1124 sym R (1521 sym/4 pcs)