QUESTION ONEa) Discuss the four levels of measurement of variables giving appropriate examples of eachcategory.b) Distinguish between Mutually Exclusive and Independent Events giving businessexamples of each.c) In 2011, there was a catastrophic act of terrorism that occurred at the Twin Towers in theUSA. An explosion and fire razed the Twin Towers to the ground. Some scientists set toinvestigate soil samples for traces of radioactive particles that could have been releasedinto the atmosphere.To examine the effect of the radioactive contamination on the environment, the levels ofcontamination (in parts per million) was recorded against the weights in some 10 samples.The following data was recorded:SampleNumberLevelofContaminationi.ii.12315 18 274295366738 61858Determine the average level of contamination.Calculate the variation of the dataset and interpret its meaning.9 1075 82

Here we have given three questions and some data set are also given.

Answered: a) Discuss the four levels of…

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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ENGINEERING PROBABILITY AND STATISTICS 1. Find a simple research problem with ready dataset from public available domain databases (just like the examples discussed in SPSS ANOVA practice). Dataset source suggestions: 2. Perform statistical analysis (descriptive+inferential). The goal is to retrieve statistical knowledge from the dataset. You can use SPSS/PSPP/EXCEL software 3. Write up a short report (10-25 pages) to discuss the purpose of the study, what statistical methods (tests) used and results obtained. REPORT FORMAT 1. Introduction 2. Literature Review 3. Methodology 4. Results and Discussion 5. Conclusion
A pool of 500 Houston residents indicated that 16% of them participated in Women’s March on January 21, 2017. We are interested in figuring out the actual percentage of Houston residents that participated in Women’s March. Please answer the following questions. 1. What kind of data is this? Numerical data Categorical data 2. What is the research question? What is the population proportion of Houston residents who participated in Women’s March? What is the percentage of 500 Houston residents who participated in Women’s March? What is the population of Houston residents? What is the sample proportion among the 500 Houston residents who participated in Women’s March? What is the population of Houston residents who participated in Women’s March? What is the pool of 500 Houston residents? 3. What is the population of interest? All Houston residents All US residents 16% of the 500 Houston residents from the pool who participated in Women’s…
What is the meaning of each below type of hypothesis? Causal Hypothesis Correlational hypothesis Descriptive hypothesis Relational hypothesis
A telemarketer calls individuals at home over the phone and ask them the likelihood that they will purchase a timeshare property over the next 12 months. This method of gathering data is known as direct observations O b. surveys O c. experiments O d. focus groups
An article was published concerning the incidence of cardiac death attributable to earthquake in Los Angeles County on January 17, 1994. In the week before the earthquake there were an average of 15.6 cardiac deaths per day in Los Angeles County. On the day of the earthquake, there were 51 cardiac deaths. Among days with more than 10 admissions, what proportion fall on weekends?
Year 1 Discussion Questions 2. The following is the experience of Insurer A for the last three years: a. What is the frequency of losses in year 1? b. Calculate the probability of a loss in year 1. c. Calculate the mean losses per year for the collision claims and losses. d. Calculate the mean losses per exposure. e. Calculate the mean losses per claim.. f. What is the frequency of the losses? g. What is the severity of the losses? Number of Exposures 10,000 10,000 10,000 Number of Collision Claims 375 030 420 Collision Losses (5) 350,000 250,000 400,000
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Name the method of estimating probabilities based on experience or institution.
3. Enumerate and explain each briefly at least FOUR (4) Examples of the Application of Statistics in the Engineering Problem Solving Process.
information is also recorded on males/females in the community. Please use the information to answer the question below. Population Deaths 238 Deaths due to Jingle Jangle 143 Deaths due to Fizzle Rocks 45 Deaths due to Other Causes Males 251,480 40.0 per 100,000 56.86 per 100,000 22.94 per 100,000 79.8 per 100,000 50 Females 248,520 221 57 21 143 What is the cause-specific mortality rate pertaining to deaths from Jingle Jangle among the population living in Riverdale this year?
Please answer part a-d with correct answer.
Sleep apnea is a condition in which the sufferers stop breathing momentarily while they are asleep. This condition results in lack of sleep and extreme fatigue during waking hours. A current estimate is that 16.3 million out of the 312.7 million Americans suffer from sleep apnea, or approximately 5.2%. A safety commission is concerned about the percentage of commercial truck drivers who suffer from sleep apnea. They do not have any reason to believe that it would be higher or lower than the population’s percentage. To test the claim that the percentage of commercial truck drivers who suffer from sleep apnea is not 5.2%, a simple random sample of 380380 commercial truck drivers is examined by a medical expert, who concludes that 29 suffer from sleep apnea. Does this evidence support the claim that the percentage of commercial truck drivers who suffer from sleep apnea is not 5.2%? Use a 0.01 level of significance. Step 1 of 3 : State the null and alternative hypotheses for the test.…

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