What is the importance of measures of central tendency?
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- The range is one of central tendency measures Select one: True FalseDiscuss briefly the following measures of Central Tendency MeanAbsenteeism: Absenteeism can be a serious employment problem. It is estimated that absenteeism reduces potential output by more than 10%. Two economists launched a research project to learn more about the problem. They randomly selected 100 organizations to participate in a 1-year study. For each organization, they recorded the average number of days absent per employee and several variables thought to affect absenteeism. Question: Use the t-tests and the slope coefficient for U/M Rel to describe how the relationship between the union and the management affects absenteeism. (both MLR and t-test are provided below) Data: Wage Pct PT Pct U Av Shift U/M Rel Absent 22477 8.5 57.1 1 1 5.4 29939 1.9 41.5 0 1 4.1 22957 12.2 52.6 1 0 11.5 18888 30.8 65.1 0 1 2.1 15078 6.8 68.8 0 1 5.9 15481 5.1 46.4 0 0 12.9 21481 25.3 38.9 0 1 3.5 29687 9.2 17.2 0 0 2.6 13603 8.4 12.9 0 0 8.6 18303 4.9 18.1 0 1 2.7 20832 23.8 64.4 1 1 6.6 22325 24.1 63.7 1 1 2.1 19964 8.6…
- What is relative risk? Give an example of how it is interpreted.Match the scenarios with the appropriate measure of central tendency that should be used to compute them on the right. (Either mean or mode.) 1. Trying to understand the performance of students from their letter grades in the course. What measures of central tendency are appropriate for the situation? 2. A retailer sells diferent types of chocolate. Which measure of central tendency should the storeowner use to describe the most popular choclate? 3. You are trying to gauge how much you might need to spend to buy a house in a new locality. The data for the prices of the houses sold last year is available. The data shows some really expensive houses were sold in the locality and the price of no two houses seem to match in the sales data. What measures of central tendency are appropriate for the situation?Explain in simple words the difference between the Causal and Correlated metric types.
- On a recent evening, a police crackdown on prostitution solicitation resulted in 19 arrests. The ages of the persons arrested were 4.9 17 18 24 37 32 49 61 20 21 21 25 24 24 26 30 33 35 22 19 a. Calculate an appropriate measure of central tendency. b. Explain why this measure of central tendency best represents typi- cality for these data.Getting acquainted with the essential terms and concepts of measures of position, it is now time for you to explain thoroughly your answers to the following questions. 1. How does Measures of Position differ from Measures of Central Tendency and Variability? Explain the difference and state its usage in descriptive statistics.A statistical program is recommended. A company provides maintenance service for water-filtration systems throughout southern Florida. Customers contact the company with requests for maintenance service on their water-filtration systems. To estimate the service time and the service cost, the company's managers want to predict the repair time necessary for each maintenance request. Hence, repair time in hours is the dependent variable. Repair time is believed to be related to three factors, the number of months since the last maintenance service, the type of repair problem (mechanical or electrical), and the repairperson who performed the service. Data for a sample of 10 service calls are reported in the table below. ŷ = Repair Time in Hours 2.9 3.0 ŷ = 4.8 1.8 2.4 4.9 4.7 4.8 4.4 4.5 Months Since Last Service 2 6 8 3 2 7 9 8 4 6 Type of Repair Electrical Mechanical Electrical Mechanical Electrical Electrical Mechanical Mechanical Electrical Electrical Repairperson Dave Newton Dave…
