Please walk me through Describing Quantitative Data Numerically in Mendenhall and Sincich
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Sure, let's walk through the process of describing quantitative data numerically using the framework provided by Mendenhall and Sincich in their book "A Course in Statistics". Show more…
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Hi, I need help with selecting a data set containing between roughly 40 and 60 pieces of real quantitative data from a single variable. Discuss which is the best measure of central tendency and why (mean, median, mode, midrange). Describe reasons for any significant difference between these four measures or reasons for any consistency between them. Construct the following displays: A. box and whisker plot, B. histogram. Discuss the shape of each display and what information they reveal about the variable. Tell which is a better display for your data set and why. Write a few sentences describing what you have learned about the variable you choose to study and the population the data came from. Write a few sentences describing how you could further study this particular variable or a related variable that would give you more information about the concept that you were interested in. Thank you!
Adi S.
Summary of Tasks: A. Compute the mean, median, mode, minimum, maximum, range, and standard deviation for each group. B. Create a histogram for each distribution. C. Answer the following questions using the data and graphs. i. Describe the center of each distribution, be sure to mention: a. What are the mean, median, and mode for each distribution? b. Look at the frequency distribution table. What is the most frequently occurring score in each distribution? c. Name the measure of central tendency that divides the top 50% from the bottom 50% of scores. d. Based on these measures of central tendency, which Section performed better? Explain your answer. ii. Describe the variability in each distribution, be sure to mention: a. What is the minimum and maximum score in each distribution? b. What is the range for each distribution? What does this measure tell us about the dispersion of scores in each distribution? c. What is the standard deviation for each distribution? What does this measure tell us about the dispersion of scores in each distribution? d. Which Section displays more variability? Explain your answer. iii. Describe the shape of each distribution, be sure to mention: a. Based on the three measures of central tendency, are the distributions approximately normal or are they skewed? Explain your answer. b. Based on the histograms, do the distributions appear approximately normal or skewed? Explain your answer. Does this answer agree with your answer to the previous question?
Jerelyn N.
1. Ordered array of raw data 2. Frequency distributions 3. Graphs (histogram, polygon, etc...) 4. Summary of measures (mean, mode, median, variance, standard deviation, and coefficient of variation) 5. Summaries of your own analysis on each problem based on chapters 1 thru 3 subjects. 1. The following data are the ages of 72 people surveyed. 34 56 43 32 40 40 41 30 54 44 5 46 33 35 35 33 34 51 48 43 30 37 50 55 30 46 51 35 43 43 41 32 45 45 30 31 32 37 37 36 48 40 32 55 43 36 40 36 30 37 29 40 36 47 43 37 35 31 35 45 32 37 40 35 29 32 41 40 36 62 25 29 47 49
Jon S.
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