보고서 설명

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 및 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 .

연관검색어

#공업통계학

구매평가

보상규정 및 환불정책

· 해피레포트는 다운로드 받은 파일에 문제가 있을
  경우(손상된 파일/설명과 다른자료/중복자료 등)
  1주일이내 환불요청 시 환불(재충전) 해드립니다.
  (단, 단순 변심 및 실수로 인한 환불은 되지 않습
  니다.)

· 파일이 열리지 않거나 브라우저 오류로 인해 다운
  이 되지 않으면 고객센터로 문의바랍니다.

· 다운로드 받은 파일은 참고자료로 이용하셔야 하
  며,자료의 활용에 대한 모든 책임은 다운로드 받은
  회원님에게 있습니다.

저작권안내