Answered: What must be the reliability of each…

What must be the reliability of each component in aseries system consisting of six components that must havea system reliability of 0.95?

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter2: Working With Real Numbers

Section2.3: Rules For Addition

Problem 8P

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A paper company has about 50 paper mills distributed over 3 provinces. Each mill records specified factors that contribute to its profitability. The company has classified the mills as Profitable and Non- Profitable. They recorded paper weight produced as an indicator of profitability. That is, X₁ = PAPER (weight in 10000 kilograms) Y = PROF (1 = profitable and 0 = not profitable) Y Profitable 1 1 0 It was found that Paper 2 1.5 0.8 ît= exp(-2.94 + 0.098X₁) 1 + exp(-2.94 +0.098X₁) 1. Give the fitted logistic response function. 2. Give the fitted logit response function 3. Show that ft loge € (₁^²) = = -2.94 + 0.098X₁ 4. Give the odds to be used of this logistic regression for X₁ = 0.7. Explain your result. 5. What is the estimated probability that a mill be profitable if it produces 7 000 kilograms of paper? 7. Interpret the regression coefficients of ît= Also find the odds ratio for b₁. exp(-2.94 + 0.098X₁) 1 + exp(-2.94 +0.098X₁)
The deadly Ebola virus is a threat to both people and gorillas in Central Africa. An outbreak in 2002 and 2003 killed 91 of the 95 gorillas in seven home ranges in the Congo. To study the spread of the virus, measure "distance" by the number of home ranges separating a group of gorillas from the first group infected. Here are data on distance and time in number of days until deaths began in each later group. (Data set may be found here.) Distance 1 3 4 4 4 5 Time 4 21 33 41 43 46 (a) Make a scatterplot. Which is the explanatory variable? What kind of pattern does your plot show?(b) Find the correlation r between distance and time.
The deadly Ebola virus is a threat to both people and gorillas in Central Africa. An outbreak in 2002 and 2003 killed 91 of the 95 gorillas in seven home ranges in the Congo. To study the spread of the virus, measure "distance" by the number of home ranges separating a group of gorillas from the first group infected. Here are data on distance and time in number of days until deaths began in each later group. (Data set may be found here.) Distance 1 3 4 4 4 5 Time 4 21 33 41 43 46 (a) Make a scatterplot. Which is the explanatory variable? distance time either distance or time Correct: Your answer is correct. What kind of pattern does your plot show? There is a strong positive linear association between distance and time. There is a strong negative linear association between distance and time. There is little to no association between distance and time. Correct: Your answer is correct. ( b) Find the correlation r between distance and time. (Round your answer to four decimal places.) (c)…
A study conducted at the University of Denver investigated whether babies take longer to learn to crawl in cold months, when they are often bundled in clothes that restrict their movement, than in warmer months. Infants born during the study year were split into twelve groups, one for each birth month. We consider the average crawling age of babies in each group against the average temperature when the babies are six months old (that's when babies often begin trying to crawl). Temperature is measured in degrees Fahrenheit and age is measured in weeks. 34 33 32 31 30- 29 30 40 50 60 70 Temperature (F) a) Describe the relationship between temperature and crawling age. Choose all answers that apply. There is strong, negative, linear relationship between termperature and crawling age nThere is a somewhat moderate, negative, linear relationship between temperature and crawling age nThere is a moderate, positive, linear relationship between the temperature and crawling age The point at the…
An embroidery business in the city of Obregon manufactures clothing, has seen high demand in the months of September-October 2020.The following data was collected: A total of 6000 Levis pants were manufactured in the month of September and October, which qualified as a demanding product. The stand was working hard, in a total of 60 days, from Monday to Sunday, 8 hours shifts, of that time 15 min were for changing the embroidery rolls and one hour for the workers. Due to the high demand of these months there are no Kanban times. Instructions: Determine the parts per hour of work that were produced during the months of September and October 2020. Important: Use the formula (the one I put in the image)
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Burning fuels in power plants and motor vehicles emits carbon dioxide (CO2), which contributes to global warming. The CO2 emissions (metric tons per capita) for countries varies from 0.02 in Burundi to 44.02 in Qatar. Although the data set includes 214 countries, the CO2 emissions of 15 countries are not available on the World Bank database. The data set is too large to display but the data for the first five countries is given. Use the full data set with data on the 214 countries to answer the questions. To access the complete data set, click the link for your preferred software format: Excel Minitab JMP SPSS TI R Mac-TXT PC-TXT CSV Crunchlt! Country CO2 Emissions (Metric Tons per Capita) Aruba 23.92 Andorra 5.97 Afghanistan 0.43 Angola 1.35 Albania 1.61 Find the mean and the median for the full data set. Round your answers to three decimal places. The mean for these data is tons per person The median for these data is tons per person
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The past records of a factory using quality control methods show that on the average 4 articles produced are defective out of a batch of 100. What is the maximum number of defective articles likely to be encountered in the batch of 400, when the production process is in a stage of control.
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The service charge for repairs at an automobile service center is based on a standard time specified for each type of repair. The time specified for the replacement of the universal joint a driveshaft is one hour. To better serve the customers, the management would like to change the time specified in their service fee rates. The manager reviews such repairs and assumed that the workers are working faster than the standard time. The manager observed 30 of such repairs and gets an average repair time of 0.86 hours with a standard deviation of 0.32 hours. Test at the 1% level of significance the null hypothesis for the actual average time for this repair. Show the following steps. a. Formulation of the hypothesis and identifying the claimb. Determining what test to be usedc. Identifying the significance level and critical valued. Computation of the test statistice. Comparing the absolute value of the computed test statictic and critical value, decide whether null hypothesis is accepter…