The Interquartile Range (IQR) is
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4 On this assignment, round all answers (when necessary) to exactly three decimal places.
The numbers of construction workers for various projects are 32 20 25 52 16 21 28 35 23 41 46 17 23 27
The Interquartile Range (IQR) is
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- Time Left:0:52:00 Dwayne Cordes: Attempt 1 17. The exam scores (out of 100 points) for all students taking an introductory Statistics course are used to construct the following boxplot. 20 00L 08 09 Exam ScoreFind the first quartile for this list of numbers 39 89 17 60 54 81 57 38 31 97 6 48 79 34 43 Quartile 1=A sample of ten commuters were asked for the distance and the time required commuting to their jobs on a given day. The data is shown in the table along with some calculations from the data. Which of the following statements are true in reference to this data? Distance x I 3 717 18 1011012 Time =y 5 10 15 2015 25 2025 35 35 From the data one obtains: = 276 SS = 103.6 SS SS = 872.5 EX =68 2Y = 205 I) X and Y show a positive correlation with r = .918 II) X and Y show a positive correlation with r = .843 III) Approximately 84.3% of the variation in time is explained by distance O l only O Il only O III only O I and III only Il and III only O I, II, and lII are all true
- What is the value of X to the nearest 10th?A company decides to investigate the amount of sick leave taken by its employees. A sample of seven employees yields the following numbers of days of sick leave taken in the past year. 1 1 3 0 0 63 Use this information to answer parts a through c. D a. Find and interpret the range. The range is days.What is P(C and Z)?
- Please answer the first 3 questions.Another measure of the average is called the midquartile; it is the numerical value halfway between Q and Q3, and the formula is Q+Q3 Midquartile = 2. Using this formula and other formulas, find Q,, 22, Q3, the midquartile, and the interquartile range for the data set. 51, 60, 73, 92, 97, 101, 104 Send data to Excel Round your answers to one decimal place, if necessary. Part: 0 / 3 Part 1 of 3 First quartile Q, is Second quartile Q, is Third quartile Q, isTwo varieties of corn are grown in 4 different locations. Each location provides a value in pounds for each variety.The table below lists the results. Find the standard error for the difference in the production of the two corn varieties to two decimal places. Variety 1 Variety 2 difference location 1 32.1 34.5 -2.4 location 2 30.6 32.6 -2.0 location 3 33.7 34.6 -0.9 location 4 29.7 31.6 -1.3 mean value 31.53 33.18 -1.65 standard deviation 1.76 1.72 0.68 1.23 0.75 0.34 0.98
