An experiment is designed to determine the effect of four different types of tips in a hardness tester on the observed hardness of a metal alloy. Four specimens of the alloy were obtained, and each tip was tested once on each specimen, producing the following data: Specimen Туре of Tip 9,3 9,4 9,2 9,7 2 3 4 1 9,4 9,3 9,4 9,6 9,6 10 9,8 9,9 3 9,5 9,7 10,2 10 Calculate the appropriate test statistic for testing the null and alternative hypothesis. (Sonuç virgülden sonra iki basamak olarak verilecektir.)

An experiment is designed to determine the effect of four different types of tips in a hardness tester on the observed hardness of a metal alloy. Four specimens of the alloy were obtained, and each tip was tested once on each specimen, producing the following data: Specimen Туре of Tip 9,3 9,4 9,2 9,7 2 3 4 1 9,4 9,3 9,4 9,6 9,6 10 9,8 9,9 3 9,5 9,7 10,2 10 Calculate the appropriate test statistic for testing the null and alternative hypothesis. (Sonuç virgülden sonra iki basamak olarak verilecektir.)

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Description: An experiment is designed to determine the effect of four different types of tips in a hardness tester on the observed hardness ofa metal alloy. Four specimens of the alloy were obtained, and each tip was tested once on each specimen, producing the

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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23453 An experiment is designed to determine the effect of four different types of tips in a hardness tester on the observed hardness of a metal alloy. Four specimens of the alloy were obtained, and each tip was tested once on each specimen, producing the following data: Specimen Туре of Tip 1 3 1 9,3 9,4 9,6 10 9,4 9,3 9,8 9,9 3 9,2 9,7 9,4 9,6 9,5 9,7 10,2 4 10 What is the appropriate null and alternative hypotheses? O a. Ho: H1 = H2 = H3 = H4 H: At least one u; is different O b. Ho: H1 = H2 = H3 = H4 = 0 H: At least ome u; + 0 O c. Ho: T1 = T2 = T3 = T4 H: At least one t, is different O d. Ho: H1 = 42 = H3 H: At least one u, = 0
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2 In building electronic circuitry, the breakdown voltage of diodes is an important quality char- Acteristic. The breakdown voltage of 12 diodes were recorded as follows (in volta): 9.099 9.174 9.327 9.377 8.471 9.575 9.514 8.928 8.800 8.920 9.913 8.306 Solution A quality engineer claimed that the variability of the breakdown voltage is not less than 0.55. Can the data support the engineer's claimed at a 0.057 ii. If level of significance is reduced to 0.02, will you change the conclusions you have made in (i)? Justified your answer.
The ratio of the lengths of the second and the fourth fingers, denoted 2D:4D, is an indicator of the level of prenatal testosterone. It is known that higher prenatal testosterone levels are associated with a lower 2D:4D value. Since testosterone levels are known to be related to behavioural traits, it has been conjectured that certain types of aggressive and dominant behaviours may be associated with lower 2D:4D values. van der Meij et al. (2012) conducted a study that investigated the possible relationship between 2D:4D and so-called "sociable" and "aggressive" dominance. For the study, 84 male students completed two questionnaires, measuring sociable and aggressive dominance respectively, on which high scores related to increased aggression. After some adjustments, a score between 1 and 6 was recorded for each subject on each questionnaire. The participants' hands were scanned and measurements taken, on which a 2D:4D measure could be recorded per subject by averaging the ratio for…
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