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MATH 285 - Statistics for Business
Description: This is a beginning course in calculus-based statistical analysis, the
skill of making sense of raw data -- constructing graphical
representations of data, developing models for making predictions,
performing tests to determine significant change and finding intervals for
population values. Students must have an understanding of calculus concepts
in order to successfully complete this course. Students will learn the
basics of descriptive statistics, probability, sampling, confidence
intervals, hypothesis testing and linear regression. The course will
stress the applications to business with emphasis on quality control. 4
hrs./wk. Students transferring MATH 285 to KU must have CIS 201 as a
corequisite. Supplies: Refer to the instructor’s course syllabus for details about any supplies that may be required.
Textbook(s): For information see - http://bookstore.jccc.net Course Fees: NONE Course Objectives: Upon successful completion of this course the student should be able to:
Content Outline & Competencies: I. Basic Descriptive Statistics: Organizing and describing data A. For a given set of data, draw a dotplot, histogram, stem-and-leaf diagram, and a boxplot. B. Describe the general shape of data, skewed left, skewed right, or symmetric; analyze the measure of skewness for a set of data. C. Calculate the measures of central tendency including mean, median, and mode. D. Calculate the measures of dispersion including range, variance, and standard deviation; explain the meaning of standard deviation as it relates to a problem. E. Use a computer package to enter data and analyze results. II. Introduction to Probability: Finding the theoretical probability of an event A. Construct the sample space for an experiment. B. Use the Fundamental Counting Rule to predict the number of things in a sample space. C. Determine whether or not two events are mutually exclusive. D. Determine whether or not two events are independent. E. Calculate conditional probabilities. F. Calculate covariance using two variables. III. Random Variables and Probability Density Functions (p.d.f.) A. List all possible values of a random variable along with its probabilities. B. Use calculus to generate the cumulative density function. C. Determine the expected value and the variance of a discrete p.d.f. D. Determine the expected value and the variance of a continuous p.d.f. E. Determine the covariance and correlation of a discrete joint p.d.f. F. Determine the covariance and correlation of a continuous joint p.d.f. IV. Special Probability Density Functions: Using statistics in the “real world” A. Use the Binomial p.d.f. to solve problems with two outcomes and independent events. B. Use the Hypergeometric p.d.f. to solve game problems, such as lotteries and card games. C. Use the Poisson p.d.f. to solve occurrences of events that happen randomly over time, such as customers entering a store. D. Use the Exponential p.d.f. to solve the time between events such as the predicted time between customers. E. Use the Normal p.d.f. to solve problems that are normally distributed. F. Use the Normal p.d.f. to solve problems that satisfy conditions for a normally distributed random variable. V. Random Sampling and Sampling Theory: Generating distributions for sample means A. Calculate the mean for a distribution of sample means. B. Calculate the standard deviation for a distribution of sample means. C. Perform a normal probability plot; describe the shape of the population based on the plot. D. Analyze the Central Limit Theorem. VI. Estimating the Mean: Using statistics to determine averages and deviations of a population A. Construct a confidence interval for a population mean with known population standard deviation; explain the meaning in terms of a problem. B. Construct a confidence interval for a population mean with unknown population standard deviation; explain the meaning in terms of a problem. C. Construct a confidence interval for a population proportion; explain the meaning in terms of a problem. D. Construct a confidence interval for a population median. E. Construct a confidence interval for a population standard deviation. VII. Hypothesis Tests: Finding significance A. Perform a hypothesis test for a population mean using a sample mean when the population standard deviation is known. B. Perform a hypothesis test for a population mean using a sample mean when the population standard deviation is unknown. C. Perform a hypothesis test for a population proportion using a sample proportion. D. Perform a hypothesis test for two population means. E. Perform a hypothesis test with more than two categories. F. Explain Type I and Type II errors with respect to a problem. VIII. Linear Regression: Making predictions with linear data A. Calculate a linear regression equation; explain the equation in terms of the problem. B. Use a linear regression equation to make predictions about data. C. Calculate the coefficient of determination for a linear regression equation; use the coefficient of determination to explain the strength of the regression equation. IX. Quality Control: Using statistics in the work setting A. Provide a brief history of quality control including a discussion of W. Edwards Deming. B. Construct basic control charts using the distributions learned in the course. Methods of Evaluation of Competencies: Evaluation of student mastery of course competencies will be accomplished using the following methods: Unit Exams, Unit Papers and/or Unit Projects 40% - 80% Homework, Quizzes and/or Small Projects 0% - 50% Final Exam** 10% - 40% **The final exam must count at least as much as any unit exam, unit paper or unit project. In any course where unit exams are not proctored, the instructor may require that the student score at least a 70% on the final exam to earn a ‘C’ for the course. At the instructor's discretion, the grade on all or any part of the final exam may replace any lower test score. Caveats:
Disabilities: If you are a student with a disability, and if you will be requesting accommodations, it is your responsibility to contact Access Services. Access Services will recommend any appropriate accommodations to your professor and his/her director. The professor and director will identify for you which accommodations will be arranged. JCCC provides a range of services to allow persons with disabilities to participate in educational programs and activities. If you desire support services, contact the office of Access Services for Students With Disabilities (913) 469-8500, ext. 3521 or TDD (913) 469-3885. The Access Services office is located in the Success Center on the second floor of the Student Center. |
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