10. Define the science of statistics, and what component of the science is most ‘important”.
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A: Note: As per our guidelines we are supposed to answer only 3 subparts of any questions so i am…
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A: Statistics is a very important and dangerous (if not used properly) tool.
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A: Solution
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Q: 1. What are the relative strengths and weaknesses of using range as a measure of variability?
A: To discuss: What are the relative strengths and weaknesses of using range as a measure of…
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A: In this case, we need to identify the two major types of statistics.
Q: Good Day! Can I ask for a brief explanation on what is the use of Statistics in the real world?
A: Solution-: Brief explanation on what is the use of Statistics in the real world?
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A: inferential statistics allows you to make predictions (“inferences”) from that data. With…
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A: Introduction: It is required to identify the suitable term for the given scenario.
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Q: Define the concept of Consistency in statistics? when can we say data is perfectly consistent?
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A:
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Q: 3.1 What is extrapolation? 3.2 What are the dangers of extrapolation?
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Q: 1. true or false. In most situations in the “real word”, we know the value of the population…
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- 4.Q.1 What do you understand by measure of central tendency?1. The two areas of statistics introduced in the course are statistics and statistics. 2. A measure computed from a sample that has been selected from a population is a 3. A data distribution is if the mean for the data is larger than the median.
- How not to be ignorant about the world - Hans and Ola Rosling . What did you learn? Has this changed your opinion on global statistics? What question stood out most to you? Do you believe this will change how you view statistics?I need help with something regarding this problem. The National Sleep Foundation recommends that adults aged 18 to 64 get an average of 8 hours of sleep per night. A survey of sleep hours was taken during a Statistics class. The data is listed below: 4, 5, 5, 5, 5.5, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 10, 10 Do we have enough evidence at the 0.05 significance level to say that statistics students tend to get less sleep than the recommended average of 8 hours per night? How would I get the degrees of freedom?40 30 20 10 0 00 : 00000 -1.00 00000 -0.75 3. A statistics student seeking part-time employment as a New York City cab driver is trying to decide between driving a yellow cab or a green cab and examines tip amounts to help in making the decision. Using data from the New York City Taxi & Limousine Commission (http:// www.nyc.gov/html/tlc/html/about/trip_record_data.shtml), the stu- dent examines tip amounts from 25 randomly selected green cab fares and tip amounts from 25 randomly selected yellow cab fares. Graphs and summary statistics of the sample data from green cabs (G) and yellow cabs (Y) are shown. Green Cab ooooooooo000 Yellow Cab oooooooooooo 우1 -0.50 88.8. COCO 2 - 3 -0.25 4 5 Amount of Trip 0.go null = 0 Source: http://www.nyc.gov/html/tlc/html/about/trip_record_data.shtml Because each sample includes outliers, a two-sample t-test for H₁ a difference in means is not appropriate to test the hypotheses: Ho: MG My = 0, Ha:MG My # 0. The student simulates a distri- µy bution of…
- (4) Questions - 1. a. Define the following i. ii. iii. Statistics Population Quantitative data Qualitative data iv. b. Identify four uses of computer in statistics and discuss any twO.Two sections of statistics are offered, the first at 8 a.m. and the second at 10 a.m. The 8 a.m. section has 25 women, and the 10 a.m. section has 15 women. A student claims this is evidence that women prefer earlier statistics classes than men do. What information is missing that might contradict this claim? Question content area bottom Part 1 Choose the best answer below. A. The professor may be female in one class and male in the other, which could affect the female students' class preference. B. The percentage of female students in the two classes is unknown. There may be more females in the 8 a.m. because there are more students in the 8 a.m. class than the 10 a.m. class. This claim could be true only if the classes were the same size. C. The age and class standing of the students is unknown. Older female students may prefer later classes, so it may be only younger female students who prefer earlier classes. D. No information is…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
- 3. You would like to determine if there is a statistical relationship between the amount of caffein in a cup of coffee and their sales at their coffee franchises. The data is included in the set "Coffee by the Cup". Here is information about the variables. Variable Caffeine Cups Sold Measurement Amount of caffeine in one cup Number of cups of the coffee Units Milligrams Cups sold sold at all of the franchises a. Which variable is the explanatory variable and which variable is the response variable? b. Construct a scatterplot of the data. Based upon the scatterplot is there a linear relationship between the amount of caffeine in one cup of the coffee and the number of cups of coffee sold? Justify your reasoning using the scatterplot. c. Run a t-test for correlation using technology. Make sure you include the p-value and the printout. According to the t-test, is there a statistical relationship between the amount of caffeine in a cup of coffee and the number of cups sold? Justify your…24. According to the Centers for Disease Control and Prevention (CDC), 26% of Americans are "anti-vax". To verify this, 1,000 Americans were asked and 324 of them said they are "anti-vax". What is the population, sample, statistic, paramter, variable, and constants?1 a) Hair color is an True False example of a qualitative data.
