Answered: The measure of central tendency which…

Math

Probability

The measure of central tendency which is used for categorical data is .... ..

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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partners. This explains the strange phenomenon observed in part (a). The data given is the expected points for a football team with first down and 10 yards to go from various points on the field. In the given table, x| stands for the number of yards from the goal and y stands for the y y 6.041 10. 55 1.538 15 4.572 65 0.923 x= 500, x2 = 33,250, y = 20.798, 3.721 0.236 25 75 expected points. (Note: - 0.637 - 1.245 35 3.167 85 xy = 404.21.) 45 2.482 95 a. Calculate the coefficient of correlation. Does there appear to be a linear correlation? b. Find the equation of the least squares line. c. Use the answer from part (b) to predict the expected points when a team is at the 50-yd line. a. The coefficient of correlation r is (Do not round until the final answer. Then round to three decimal places as needed.) teb lo Does there appear to be a linear correlation? A. No, there is no linear correlation between the data points. B. Yes, the data points show linear correlation. b. The equation of…
Tell me the Mean Mode and Median for the following data: The "Hermis Burger Joint" is a real greasy joint but they make great fried chicken, waffles and apple pie (mmmm.....Pie)! You lika da Yeero?! If you are ever on Roselle Rd. in Schaumburg Il....check out County Doughnuts....best doughnuts east of the Mississippi! The Hermis Burger Joint pays its 5 hourly employees $6, $3, $5, $7 and $6 per hour. What is the Mean Mode and Median of the data.
Research Question: Is there a relationship between college graduation and parental education? Provide following: Improved research question based on original research question from below. Feel free to refine or make the variables more specific for your assignment. Identify the variables, including the following: Variables (ex: gender, GPA) Are the variables numeric or categorical (ex: Gender is categorical; GPA is numeric) If the variable is categorical, then provide the categories/groups that make up that variable (ex: For gender, the groups would be female, male, and other) If the variable is numeric, then provide the range of possible values (ex: GPA is measuring the person's college GPA score) Correctly worded hypothesis (null & alternative) What statistical test should be used to analyze this hypothesis, and why is that test the most appropriate? Statistical Test Options: Chi-square, Correlation, Spearman correlation, Independent samples t-test, ANOVA, Linear Regression,…
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Monica took a survey of her classmates' hair and eye color. The results are in the table below. Hair Color Eye Color Blonde Red Brown Total Blue 6 3 4 Brown 2 2 10 Green 3 5 5 Total What is the conditional relative frequency that a participant has blue eyes, given that he or she has blonde hair. Monica took a survey of her classmates' hair and eye color. The results are in the table below. Hair Color Eye Color Blonde Red Brown Total Blue 6 3 4 Brown 2 2 10 Green 3 5 5 Total What is the conditional relative frequency that a participant has blue eyes, given that he or she has blonde hair.
Students at Dover Community College have a mean credit card debt of $4,700 with a median of $2,900. Students at Ralton Community College have a mean credit card debt of $2,100 with a median of $1,900. Which of the following statements are true based on this information? There may be more than one correct answer. i. No more than half of Ralton students have debt more than $1,900. ii. The total debt of Ralton students is more than the total debt of Dover students. iii. The largest debt of the Ralton students is less than the largest debt of the Dover students. iv. About one-fourth of Ralton students have debt more than $2,100. v. Less than half of Dover students have debt more than $4,700.
Scenario: A guidance counselor wanted to know if anxiety differs based on time (first day of class in relation to the last day of class), and if this differs based on year in school (as a freshman, sophomore, junior, or senior). She collected data on a single group of students across their entire high school career at these eight time points — first and last day of freshman, sophomore, junior, and senior year. Anxiety was measured using a standardized scale ranging from 0 — 50, with higher scores indicating greater anxiety. Question: If p = .014 for the interaction of Time x Academic Year, what should the researcher conclude? Group of answer choices The interaction is not significant; no additional analyses are needed to interpret it. The interaction is significant; no additional analyses are needed to interpret it. The interaction is not significant; run correlated groups t-tests for post hoc analyses. The interaction is significant; for post hoc analyses, split the file…
The operations manager of a company that manufactures tires wants to determine whether there are any differences in the quality of workmanship among the three daily shifts. She randomly selects 499 tires and carefully inspects them. Each tire is either classified as perfect, satisfactory, or defective, and the shift that produced it is also recorded. The two categorical variables of interest are: shift and condition of the tire produced. The data can be summarized by the accompanying two-way table. Perfect Satisfactory Defective Total Shift 1 106 124 2 232 Shift 2 66 85 3 154 Shift 3 36 74 3 113 Total 208 283 8 499 A) This sample has degree of freedom:��= If shift and quality are independent, thenB) With any expected count accurate to 2 decimal places, the expected count in row 1 column 1 is�1,1= C) With any component accurate to 2 decimal places, the component value in row 1 column 1 of the table iscomponent1,1= D) �2 value of this sample is�2= . Round to 2 decimal…
You saw back in Chapter 2 that the mean, median, mode, and midrange are used to indicate where data is centered in a data set, or in other words what a typical value in the set is. A question that is often asked is, "If they're all supposed to do the same thing, why is there more than one?" Isn't one enough? In this exercise, you will be given two small sets of data. For each set, a. find the mean, median, mode and midrange b. in your opinion, decide which of the measures BEST represents all the values in the set (best indicates a typical value), and which one does this the WORST. c. post your responses and justify them by explaining why Don't forget to respond to at least one of your classmate's posts. With this exercise, "more is better." I'll elaborate after the deadline. • Set A: the salaries of 10 employees at a company (in thousands of dollars): 50, 50, 50, 50, 50, 50, 50, 50, 50, 500 • Set B: the grades of 9 students on an exam: 20, 25, 30, 35, 40, 45, 100, 100, 100
You need to use Stata to look up the dataset and its variables. Use Stata Companion Textbook. (Dataset: NES. Variables: spend8, [pw=nesw].) The NES dataset contains spend8, which records the number of government policy areas where respondents think spending should be increased. Scores range from 0 (the respondent does not want to increase spending on any of the policies) to 8 (the respondent wants to increase spending on all eight policies). The NES, of course, polls a random sample of U.S. adults. In this exercise you will analyze spend8 using the mean and lincom commands. You then will draw inferences about the population mean. (Remember to specify nesw as the probability weight.) The spend8 variable has a sample mean of ______. Make sure you use [pw=nesw] so your results are nationally representative. There is a probability of .95 that spend8’s true population mean falls between a score of ______ at the low end and a score of ______ at the high end. A student researcher…
Which of these are categorical and which are quantitative?