1a. We consider the variable Female? and call it Sex.
Out of 19 observations 16 are Male and three are females. Relative frequencies are 84.21% for the males and 15.79% for the females. Naturally Modal value is the Males, which has the highest frequency.
3a. We consider the variable Height, which is a continuous variable, The relevant statistics are
Mean StDev Minimum Q1 Median Q3 Maximum
68.32 9.82 30.00 67.00 71.00 72.00 77.00
3b. The boxplot is given below
The boxplot shows one outlier, which by inspection is 30.
5. We plot the histogram with and without outlier to check normality.
The histogram shows departure from symmetry and hence non normality.
This histogram is more or less
symmetric with a single peak. Hence normality is
adequate.
Download the attached data file. Use the data file to answer the questions 1 to 5...
Download the attached data file. Use the data file to answer the questions 1 to 5 1. Select a proper variable and use a bar graph to describe the distributions of this variable (show percentage, increasingly) a. Use a paragraph to describe the frequency distribution and relative frequency of this variable. Indicate the mode 2. Construct two pie charts by using another proper variable by further dividing this variable into two categories with another two-leveled variable a. Also, use a...
Who Watches More TV: Males or Females? Use technology and the StudentSurvey dataset to test whether the data provide evidence that there is a difference in the mean number of hours spent watching television per week between males and females. Click here for the dataset associated with this question. What are the hypotheses? Use subscripts 1 for females and 2 for males. 11 1 H HP UP HP HIP 11 12 11 Pi 1: P2 G TV Piercing B Gender...
please peovide coding in R: with a data of 13 variables and 200 observations Using the variable CLASS, test at 5% significance level to test the claim that the proportions of Freshmen, Sophomores, Juniors, and Seniors are the same. 2. Repeat part (a) for the variable COLLEGE. RLM ENGLISH MATH COMP 21 16 25 839SSESSOR 8 F 17 F N H ABCD 1 SEX HSP GPA AGE CREDITS CLASS COLLEGE MAJOR RESIDENCY TYPE 2 Transfer Blochm Resident F 75 2.39...
Open the data Cars04-HW6&5 and answer questions 13 to 14. 13. Compute the Average, Median, and Standard Deviation Horsepower column. Which of the following statement is true? (4 points) a. Median < Average < Standard deviation b. Average < Standard deviation c. Standard deviation d. Average < Median < Standard deviation e. Standard Deviation < Average < Median 14. Using 2-standard deviation rule of thumb and the information you obtained from question 13 which of the following is true? Round...
Height vs Weight - Erroneous Data: You will need to use software to answer these questions. Below is the scatterplot, regression line, and corresponding data for the height and weight of 11 randomly selected adults. You should notice something odd about the last entry. index height (x) weight (y) inches pounds 1 60 120 2 72 200 3 65 130 4 72 205 5 67 180 6 69 180 7 68 193 8 69 195 9 61 115 10...
Use our class áat to do the foloving problems Be nest and o se our class data to do the f Do the hypothesis tests on separate paper. Due at or before 1. (Ch.11) Using our class data: test the claim that the proportion of Cabrillo students who are dog owners is greater than proportion for testing are satisfied here. of Cabrillo students who are cat owners. Assume that all requirements 5 points) 2. (Ch.12.1) A research study from 1990...
1. Please use this dataset to answer the following questions: 4, 3, 6, 5, 3, 2, 4, 5, 7, 6, 3, 4, 6, 6, 1, 7, 8, 8, 23, 4, 0, 2, 6, 9, 6, 1, 5, 7, 4, 5 (1) Please calculate mean, median and mode. (2) Please calculate sample standard deviation. (3) According to your answer in part (2), please explain why sample standard deviation can never be negative. (4) Please calculate first quartile, second quartile, and third...
PART 4: To answer questions 10, 11 and 12 , please read and use the following context. Consider a monopolist that practices third-degree price discrimination (also called explicit price discrimination). For the first segment of the market, the demand for the firm’s product is given by: P1=100-2Q1 Where the subscript 1 is used to refer to the fact this is the first segment. For the second segment, the demand for the firm’s product is given by: P2=50-Q2 Where the subscript...
Attached are questions; I have answered them; my answers are marked as * but there are wrong answers; please find the wrong ones and explain why. Thank you. 11.) A pregnant woman at 15 weeks gestation states she feels fetal movement. This is commonly referred to as A. jumping B. ballottment C. lightening *D. Quickenin 12.) Leopold's maneuver can be used to shift the position of the fetus during pregnancy. True OR * False 13.) When using cross-cultural communication, the...
Please answer the following questions 1. What keyword is used to make a child class use a parent class? a.) is a b.) extends c.) has a d.) inherits 2. Suppose you have the given code below. Scanner keyboard = new Scanner(System.in); What would be the correct way to scan in an integer value from the keyboard. a.) scan.nextInt() b.) scan.nextDouble() c.) scan.nextLine() d.) keyboard.nextInt() 3. True or False. Arrays use sequential blocks of memory while linked lists do not...