By using minitab calculate the ppm number of a 5.5 sigma level quality process using similar assumptions of 6- sigma quality
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Q: Polychlorinated biphenyl (PCB) is among a group of organic pollutants found in a variety of…
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Q: Polychlorinated biphenyl (PCB) is among a group of organic pollutants found in a variety of…
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Q: Polychlorinated biphenyl (PCB) is among a group of organic pollutants found in a variety of…
A: Given: n=38μ=48.3σ=5x¯=48.5
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Q: (PCB) is among a group of organic pollutants found in a variety of insulating materials, and…
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Q: Polychlorinated biphenyl (PCB) is among a group of organic pollutants found in a variety of…
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By using minitab calculate the ppm number of a 5.5 sigma level quality process using similar assumptions of 6- sigma quality
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- A car battery manufacturer claims that its car batteries last at least 4 years on average, under normal operating conditions. However, many consumers have experienced battery failure well before 4 years. A consumer advocacy group decided to investigate the company to determine if the company's claim about the average lifespan of their car batteries is exaggerated and misleading.A random sample of 74 batteries was collected and tested by the consumer advocacy group and the mean lifespan was found to be 3.95 years.Use the critical value method to test the hypothesis that the mean lifespan of this brand of car battery is less than 4 years, using α=0.005. Assume that the standard deviation of the lifespans of all batteries produced by this company is known to be 0.65 year. Left-tailed The standard normal (zz) distribution should be used Determine the critical value(s) for this hypothesis test. Round the solution(s) to two decimal places. If more than one critical value exists, enter the…A random sample of 15 ECE graduates of a certain school design aschematic diagram of a given electronic system with an average time of 2hrs with a standard deviation of 20 minutes. Assuming a normaldistribution for the time to finish the design of the schematic diagram, a. find a 99% confidence interval for the average time to finish thedesign of the schematic diagram by all ECE graduates of this school. b. Compute the 99% prediction interval for the next observed time tofinish the design of the schematic diagram by a graduate of thisschooThe new version of the Standard requires the measurement uncertainty (MU) contributions of sampling to be considered Comment on whether this is still applicable if the facility is not accredited for sampling or is not responsible for sampling.
- Use the data set CPS2015 described in Empirical Exercise 8.2 (You can search the data on the text website http://www.pearsonhighered.com/stock_watson/, where you will find a data file CPS2015, which contains data for full-time, full-year workers, age 25-34, with a high school diploma or B.A./B.S. as their highest degree. A detailed description is given in CPS2015_Description, also available on website). Based on the 2015 data E8 1.2 (l) concluded: Earnings for those with a college education are higher than those with a high school degree, and earnings of the college educated increase more rapidly early in their careers (age 25–34). Earnings for men are higher than those of women, and earnings of men increase more rapidly early in their careers (age 25–34). For all categories of workers (men/women, high school/college) earnings increase more rapidly from age 25–32 than from 32–34. After downloaded the data file, please answer the following question: The data set CPS96_15 described in…The local utility company checks a sample of utility bills each month to assure the accuracyof the billing statements. The data in the table below shows the number of incorrect bills(defects) out of a sample of 100 statements each time. Construct a control chart using 3-sigmalimits based on this data. Is the process “in statistical control”?In a study of parking time, a random sample of five drivers were asked to parallel park two cars having very different wh in seconds for each driver was recorded and analyzed in Minitab. The output is given below. Estimation fór Paired Difference (Car 2 - Car 1) Mean StDev SE Mean 0.600 1.673 0.748 Let p_d be the population mean difference of parkig time (Car 2 - Car_1). At 5% significance level do the data prou that the parkimg time for car 2 is significantly higher than that of car 1? Assume that the population of the difference a. What are the signs of the null and the alternative hypotheses of the test for this problem? (use only the signs: , ,r Но b. The value of the test statistic = (Round to 2 decimal places) ritical value of this test = d. The degrees of freedom of the test statistic = than the critical value, we (hav e. Conclusion: Since the test statistic is (less / more) enough evidence to conclude that the parkimg time for car 2 is significantly higher t
- When bonding teeth, orthodontists must maintain a dry field. A new bonding adhesive called "Smartbond" has been developed to eliminate the necessity of a dry field. However, there is concern that the new bonding adhesive is not as strong as the current standard, a composite adhesive ( Trends in Biomaterials & Artificial Organs, Jan. 2003). Tests on a sample of 10 extracted teeth bonded with the new adhesive resulted in a mean breaking strength (after 24 h) of = 5.07 Mpa (megapascal). Orthodontists want to know if the true mean breaking strength of the new bonding adhesive is less than 5.70 MPa, the mean breaking strength of the composite adhesive. Conduct the appropriate analysis for the orthodontists at level a = 0.01 when: (1) The standard deviation has been estimated to be s = 0.46 MPa; (2) the variance of the population distribution is known to be o2 = 0.25 MPa.what is the meaning of weighted unifrac beta diversity and unweighted unifrac diversity? How to interpretate the data value?13 0/2.7E Arandom sample of n =755 US cell phone users age 18 and older in May 2011 found that the average number of text messages sent orreceived per day is 41.5 messages, with standard error about 6.1. 1. Smith, A, "Americans and Text Messaging." Pew Research Center, http://www.pewinternet.org/Reports/2011/Cell-Phone-Texting- 2011/Main-Report/How-Americans-Use-Text-Messaging.aspx, accessed September 19, 2011. Z . Your answeris incorrect. (a) Use the information from the sample to give the best estimate of the population parameter. e Textbook and Media Hint Your answer is incorrect. (b) Find a 95% confidence interval for the mean number of text messages. to i | The 95 % confidence interval is O 70°F Sunny 0 ch 宜
- Polychlorinated biphenyl (PCB) is among a group of organic pollutants found in a variety of products, such as coolants, insulating materials, and lubricants in electrical equipment. Disposal of items containing less than 50 parts per million (ppm) PCB is generally not regulated. A certain kind of small capacitor contains PCB with a mean of 48.2 ppm and a standard deviation of 5 ppm. The Environmental Protection Agency takes a random sample of 37 of these small capacitors, planning to regulate the disposal of such capacitors if the sample mean amount of PCB is 49.5 ppm or more. Find the probability that the disposal of such capacitors will be regulated. Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.The average earnings per share (EPS) for 10 industrial stocks randomly selected from those listed on the Dow-Jones Industrial Average was found to be 28.73 with a standard deviation of 3.50. What is the 99% Error Bound (EBM)?ke/launch.jsp?course_assessment_id%3_2002404 one: M Gmail YouTube Maps Noticias Traducir Question Completion Status: QUESTION 8 Which of the following can increase error in a statistical experiment? (Select all that apply) Convenience Sample a. Small sample size Ob. The sample that has the same characteristics as the population. C. d. None of these condition will increase error in statistical experiments. QUESTION 9 What is the main advantage of simple random sampling (SRS) over cluster sampling Click Save and Submit to save and submit. Click Save All Answers to save all answers.
