• Discussion: What are at least two reasonable ways to deal with eachof the following outliers based on the discussion in this chapter? (a)A participant estimating ordinary people's heights estimates onewoman's height to be "84 inches" tall. (b) In a study of memory forordinary objects, one participant scores 0 out of 15. (c) In responseto a question about how many "close friends" she has, one partici-pant writes "32."1. Schmitt, D. P., & Allik, J. (2005). Simultaneous administration of the RosenbergSelf-Esteem Scale in 53 nations: Exploring the universal and culture-specificfeatures of global self-esteem. Journal of Personality and Social Psychology, 89,623-642.2. Buss, D. M., & Schmitt, D. P. (1993). Sexual strategies theory: A contextual evo-lutionary analysis of human mating chological Review, 100, 204-232.MacBook Ai888DIIDDF4F5F7F8F9$&45678.9Y

An outlier is an extreme observation, as shown in following figures. The point labelled A is…

• Discussion: What are at least two reasonable ways to deal with each of the following outliers based on the discussion in this chapter? (a) A participant estimating ordinary people's heights estimates one woman's height to be "84 inches" tall. (b) In a study of memory for ordinary objects, one participant scores 0 out of 15. (c) In response to a question about how many "close friends" she has, one partici- pant writes "32."

• Discussion: What are at least two reasonable ways to deal with each of the following outliers based on the discussion in this chapter? (a) A participant estimating ordinary people's heights estimates one woman's height to be "84 inches" tall. (b) In a study of memory for ordinary objects, one participant scores 0 out of 15. (c) In response to a question about how many "close friends" she has, one partici- pant writes "32."

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Students in a statistics class were asked, “About how many minutes do you typically exercise in aweek?” Responses from the men in the class were “180, 300, 60, 480, 0, 90, 300, 14, 600, 360, 120, 0,240”(a) Create a five-number summary of the men’s responses.(b) Identify any potential outliers.
In a study conducted by some Statistics students, 73 people were randomly assigned to listen to rap music, music by Mozart, or no music while attempting to memorize objects pictured on a page. They were then asked to list all the objects they could remember. The summary statistics for each group are shown in the table. Complete parts a and b. HA: HM-HRU C. Ho: HM-HR <0 HA: HM-HR=0 ... Count Mean SD HA: HM-HRU D. Ho: HM-HR = 0 HA: HM-HR <0 Rap Mozart The 90% confidence interval for the negative difference in means is (.). (Round to three decimal places as needed.) 33 • 20 10.88 10.15. 3.71 3.04 No Music 20 13.29 4.88 Test the hypothesis. t = -0.78 (Round to two decimal places as needed.) P = 0.7799 (Round to four decimal places as needed.) State your conclusion. Use α = 0.05. Do not reject Ho. There is no evidence that the mean number of objects remembered by those who listen to Mozart is higher than the mean number of objects remembered by those who listen to rap music. b) Now compare…
ANOVA. Dr. Milgramm is conducting a patient satisfaction survey, rating how well her patients like her on a scale of 1-10. Her patients tend to fall into three categories: “Like a lot”, “like somewhat”, and “dislike a lot”. She believes that she might get different satisfaction scores from people in each group, but (because she's not great at numbers) she wants you to do an ANOVA to be sure. She has collected data from 12 patients (three equal groups) with the following results. Group 1) “Like a lot” Mean: 8 SS: 2 N: df: Group 2) “Like somewhat” Mean: 5 SS: 6 N: df: Group 3) “Dislike a lot” Mean: 2 SS: 4 N: df: Grand Mean: df Within-Group:__________ df Between-Groups:___________ Estimated Variance (S21) for Group 1: _______ Estimated Variance (S22) for Group 2: ___________ Estimated…
GSS 2018 respondents were asked to rate their level of agreement to the statement, “Differences in income in America are too large.” Responses were measured on a 5-point scale: 1 = strongly agree, 2 = agree, 3 = neutral, 4 = disagree, and 5 = strongly disagree. Strong Democrats had an average score of 1.69 (s = 1.04, N = 86) while strong Republicans had an average score of 2.11 (s = 1.05, N = 67). The estimated standard error of the difference between meansis 0.17. What is the appropriate test statistic? Why? Test the null hypothesis with a one-tailed test (strong Democrats are more likely to agree with the statement than strong Republicans); α = .05. What do you conclude about the difference in attitudes for these two political groups? If you conducted a two-tailed test with α = .05, would your decision have been different?
A visiting comparative literature student from Cambridge University believes that contemporary readers prefer novels from George RR Martin (the author of the Games of Thrones saga) to Shakespeare. She devises a study in which 40 participants are asked to read excerpts from both Shakespeare plays and Games of Thrones books and rate their level of satisfaction for each excerpt. Satisfaction is measured using a 5-point Likert scale (5 indicates high satisfaction). In order to allow for a fair comparison, she hides the name of the authors and recruits a professional translator to adapt the Games of Thrones text to old Elizabethan English. The order of presentation is also randomised and balanced across participants. The attached CSV file contains the data that was collected for the experiment. What can you conclude from the results of this experiment? I require assistance on: Identifying the appropriate statistical test. Conducting the statistical test in JASP, Excel or SPSS. Reporting…
Part E. Please carefully examine this graph: 5'7" 5'6" 5'5" 5'4" 5'3" 5'2" 5'1" 5'0" Average Female Height per country Latvia Australia Scotland Peru South Africa India 12. Is this a univariate or a bivariate graph? 13. This is a stylized version of what kind of graph (bar, pie, line, boxplot, histogram, stem- and-leaf, frequency polygon, ogive)? 14. What are the two key ways in which this graph is misrepresenting the data?
These next questions come after part B. Which of the statements correctly describes the relationship between the mean and median in the histogram of the number of servings of fruit per day claimed by the 7474 seventeen‑year‑old girls? A) The mean and median are about equal because the distribution is right‑skewed. B) The mean is larger than the median because the distribution is right‑skewed. C) The median is larger than the mean because the distribution is right‑skewed. D) There is not enough information to tell us about the relationship between the mean and median in the histogram. (c) In general, you cannot find the exact values of median, quartiles, or mean from the histogram. What is special about the histogram of the number of servings of fruit that allows you to do this? Select an answer choice. A) We know exactly how many observations fall in each bin because of the way the bins are constructed. B) The sample size only consists of only 74…
(b) 9 Five pennies were tossed 1000 times, and at each toss the number of heads was observed. The number of tosses during which 0, 1, 2, 3, 4, and 5 heads were obtained is shown in Table 2.12. (a) Graph the data of Table 2.12. (b) Construct a table showing the percentage of tosses resulting in a number of heads less than 0, 1, 2, 3, 4, 5, or 6. (c) Graph the data of the table in part (b). Table 2.12 Number of Tosses (frequency) Number of Heads 0 38 1 144 2 342 3 287 4 164 25 1000 Total
(ii) The lecturer wishes to compare the average scores for Business Statistics between the accounting students and the finance students. He records the marks of a group of 8 students from each course in the following table. Student Accounting course Finance course 78 54 56 95 3 67 68 4 49 71 88 82 76 7 8 62 74 86 85 57 Test at 5% level of significance whether the average score for Business Statistics is different between accounting students and finance students.
5-16 Refer to Table 5-7 and the patient satisfaction survey form with 22 items. Patients were asked to rate their perceived level of satisfaction on a five-point ordinal Likert scale as shown. Additionally, patients were asked to rate the importance of each item on a five-point ordinal Likert scale, using a rating of 1 to indicate "not important at all" to a rating of 5 indicating "very important." The median rating scores for both perceived satisfaction and importance for each of the 22 items are shown in Table 5-17. Construct an overall analysis to advise management on strategic and operational plans. TABLE 5-17 Item Number I 2 34 S 678 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Median 1.5 1.5 4 3.5 1.5 1 15 2 3.5 2 1.5 1.5 1.5 4.5 3 4.5 4 4 3.5 2.5 1 I sarisfaction rating Median importance nating 43 2.5 2 2 1.5 4.5 4 3 4.5 3.5 3.5 4.5 5 5 4 4.5 4.55 45 4.5 3.5
(6) A student surveys some students on campus in the evening and finds that 16 out of 20 of the students she interviewed are part time students. She uses the data to estimate the percentage of all students who are part time. What type of bias is present in her sample?
n the Focus Problem at the beginning of this chapter, a study was described comparing the hatch ratios of wood duck nesting boxes. Group I nesting boxes were well separated from each other and well hidden by available brush. There were a total of 487 eggs in group I boxes, of which a field count showed about 268 hatched. Group II nesting boxes were placed in highly visible locations and grouped closely together. There were a total of 818 eggs in group II boxes, of which a field count showed about 260hatched. (a) Find a point estimate p̂1 for p1, the proportion of eggs that hatch in group I nest box placements. (Round your answer to three decimal places.)p̂1 = Find a 95% confidence interval for p1. (Round your answers to three decimal places.) lower limit upper limit (b) Find a point estimate p̂2 for p2, the proportion of eggs that hatch in group II nest box placements. (Round your answer to three decimal places.)p̂2 = Find a 95% confidence interval for p2. (Round your…