해피레포트 - 공업통계학 principles of statistics for engineers and scientists 연습문제 풀이

카테고리 : 레포트 > 공학,기술계열 파일이름 :공업통계학 principles of.hwp 문서분량 : 6 page 등록인 : repojaehoon 문서뷰어 : 한글뷰어프로그램 등록/수정일 : 17.03.02 / 17.03.02 구매평가 : 다운로드수 : 0 판매가격 : 1,300 원

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보고서설명
공업통계학 principles of statistics for engineers and scientists 6.1 6.2 6.3 6.4 6.5 6.6 장 연습문제 풀이 6.1 7. When it is operating properly, a chemical plant has a mean daily production of at least 740 tons. The output is measured on a simple random sample of 60 days. The sample had a mean of 715 tons/day and a standard deviation of 24 tons/day. Let represent the mean daily output of the plant. An engineer tests versus 6.2 10. The installation of a radon abatement device is recommended in any home where the mean radon concentration is 4.0 picocuries per liter (pCi/L) or more, because it is thought that long-term exposure to sufficiently high doses of radon can increase the risk of cancer. Seventy-five measurements are made in a particular home. The mean concentration was 3.72pCi/L, and the standard deviation was 1.93pCi/L. 6.3 3. Do bathroom scales tend to underestimate a person’s true weight? A 150lb test weight was placed on each of 50 bathroom scales. The readings o

본문일부/목차
공업통계학 principles of statistics for engineers and scientists 6.1 6.2 6.3 6.4 6.5 6.6 장 연습문제 풀이 6.1 7. When it is operating properly, a chemical plant has a mean daily production of at least 740 tons. The output is measured on a simple random sample of 60 days. The sample had a mean of 715 tons/day and a standard deviation of 24 tons/day. Let represent the mean daily output of the plant. An engineer tests versus 6.2 10. The installation of a radon abatement device is recommended in any home where the mean radon concentration is 4.0 picocuries per liter (pCi/L) or more, because it is thought that long-term exposure to sufficiently high doses of radon can increase the risk of cancer. Seventy-five measurements are made in a particular home. The mean concentration was 3.72pCi/L, and the standard deviation was 1.93pCi/L. 6.3 3. Do bathroom scales tend to underestimate a person’s true weight? A 150lb test weight was placed on each of 50 bathroom scales. The readings on 29 of the scales were too light, and the readings on the other 21 were too heavy. Can you conclude that more than half of bathroom scales underestimate weight? 6.4 5. Measurements were made of total solids for seven wastewater sludge specimens. The results, in grams, were 6.5 2. At an assembly plant for light trucks, routine monitoring of the quality of welds yields the following data: 6.6 7. A machine that grinds valves is set to produce valves whose lengths gave mean 100mm and standard deviation 0.1mm. The machine is moved to a new location. It is thought that the move may have upset the calibration for the mean length but that it is unlikely to have changed the standard deviation. Let represent the mean length of valves produced after the move. To test the calibration, a sample of 100 valves will be ground, their lengths will be measured, and a test will be made of the hypotheses versus .

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카테고리 : 레포트 > 공학,기술계열
파일이름 :공업통계학 principles of.hwp
문서분량 : 6 page	등록인 : repojaehoon
문서뷰어 : 한글뷰어프로그램	등록/수정일 : 17.03.02 / 17.03.02
구매평가 :	다운로드수 : 0

공업통계학 principles of statistics for engineers and scientists 연습문제 풀이

판매가격 : 1,300 원