# Question: Chance Fall 2002 described a lawsuit charging Intel Corp with

Chance (Fall 2002) described a lawsuit charging Intel Corp. with infringing on a patent for an invention used in the automatic manufacture of computer chips. In response, Intel accused the inventor of adding material to his patent notebook after the patent was witnessed and granted. The case rested on whether a patent witness’s signature was written on top of or under key text in the notebook. Intel hired a physicist who used an X-ray beam to measure the relative concentrations of certain elements (e.g., nickel, zinc, potassium) at several spots on the notebook page. The zinc measurements for three notebook locations—on a text line, on a witness line, and on the intersection of the witness and text line—are provided in the following table and saved in the PATENT file.

a. Use a test or a confidence interval (at α = .05) to compare the mean zinc measurement for the text line with the mean for the intersection.

b. Use a test or a confidence interval (at α = .05) to compare the mean zinc measurement for the witness line with the mean for the intersection.

c. From the results you obtained in parts a and b, what can you infer about the mean zinc measurements at the three notebook locations?

d. What assumptions are required for the inferences to be valid? Are they reasonably satisfied?

a. Use a test or a confidence interval (at α = .05) to compare the mean zinc measurement for the text line with the mean for the intersection.

b. Use a test or a confidence interval (at α = .05) to compare the mean zinc measurement for the witness line with the mean for the intersection.

c. From the results you obtained in parts a and b, what can you infer about the mean zinc measurements at the three notebook locations?

d. What assumptions are required for the inferences to be valid? Are they reasonably satisfied?

**View Solution:**## Answer to relevant Questions

Two methods of castrating male piglets were investigated in Applied Animal Behavior Science (Nov. 1, 2000). Method 1 involved an incision in the spermatic cords, while Method 2 involved pulling and severing the cords. ...The data for a random sample of 10 paired observations are shown in the following table and saved in the a. If you wish to test whether these data are sufficient to indicate that the mean for population 2 is larger than that ...Determining alcoholic fermentation in wine is critical to the wine-making process. Must/wine density is a good indicator of the fermentation point, since the density value decreases as sugars are converted into alcohol. For ...Conduct a two-sample t–test (Section 9.2) of the null hypothesis that the two treatment means are equal for each dot plot. Use α = .05 and two-tailed tests. In the course of the test, compare each of the following with ...Consider a completely randomized design with five treatments: A, B, C, D, and E. The ANOVA F-test revealed significant differences among the means. A multiple-comparison procedure was used to compare all possible pairs of ...Post your question