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Apr 20, 2025
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MAT 162 - Prin. of Business Statistics Credits: 4 Lecture Hours: 4 Lab Hours: 0 Practicum Hours: 0 Work Experience: 0 Course Type: Core Introduces statistics, primarily for business majors. Investigates methods of collection, organization, presentation, analysis and interpretation of quantitative data as tools in effective business decision-making. Computer applications are used to assist in visualizing and analyzing data. Covers descriptive statistics, probability, confidence intervals and hypothesis testing for one and two samples, regression, correlation and chi-square. Prerequisite: Minimum ALEKS scores of 46% or MAT 073 with a C- or better. Competencies
- Evaluate data.
- Define data and sources of data.
- Explain the various types of data and levels of measurement.
- Describe how to visualize, describe, and display categorical data.
- Establish how to visualize, describe, and display quantitative data.
- Determine shape and measures of center and spread of quantitative data.
- Use a five-number summary to construct a boxplot.
- Discuss measures of relative standing.
- Give examples of various sampling methods and survey designs.
- Compare and contrast observational studies and experiments.
- Describe aspects of designs of experiments to include blocking, blinding, and treatment and control groups.
- Interpret probability.
- Define probability and odds in terms of likelihood, frequency, and proportion.
- Discuss basic probability concepts.
- Explain the Law of Large Numbers.
- Compute probability using complement, multiplication, and addition rules.
- Analyze multivariate probability by means of marginal distributions.
- Determine conditional probability using intuitive and formal rules.
- Decide whether two or more events are independent.
- Use Bayes’ rule to compute reverse conditional probability.
- Evaluate probability using parametric distributions.
- Solve problems involving expected value of random variable.
- Determine mean and standard deviation of a discrete probability distribution.
- Use a binomial, Poisson, geometric, or other discrete model to compute probability.
- Compute probability using a normal distribution or other continuous model.
- Support statistical inference by using confidence intervals.
- Discuss sampling distributions of proportions, means, and standard deviations.
- Determine confidence intervals for proportions, means, and standard deviations.
- Construct a confidence interval for the difference of two independent means.
- Interpret the results of hypothesis testing regarding one population parameter.
- Test claims about population proportions, means, and standard deviations.
- Evaluate claims about population proportions, means, and standard deviations using p-values.
- Discuss potential Type I and Type II errors of hypothesis tests.
- Determine the power of a hypothesis test.
- Critique claims about parameters from two or more populations.
- Test claims about the difference of two independent means and proportions.
- Perform a matched pairs t-test.
- Assess claims about two population variances or standard deviations using the F-distribution.
- Use a chi-square distribution to conduct a goodness-of-fit test, test of homogeneity, and test of independence.
- Evaluate linear correlation.
- Determine the slope, y-intercept, and correlation coefficient for least-squares linear model.
- Interpret the slope, y-intercept, and correlation coefficient for least-squares linear model.
- Test claims about the correlation coefficient, slope, and y-intercept.
- Construct the confidence interval for the slope and y-intercept of the least-squares line.
- Find predicted values and prediction intervals from the linear model.
- Determine residuals from the linear model.
- Analyze the residual plot to determine suitability of linear model.
- Interpret the R-squared statistic.
- Compute explained, unexplained, and total variation.
- Discuss transforming and re-expressing data.
- Incorporate appropriate technology.
- Use appropriate technology to perform statistical computations and analysis.
- Use software to visualize and analyze data.
Competencies Revised Date: 2020
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