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Statistic for Business Hw

In: Business and Management

Submitted By jiumihongrelu
Words 1093
Pages 5
QBUS 215

HW #1
Due 07/15/15 @7:55 am

Name: ────────────────

Based on the content of the Online Detailed Examples presentations along with other online resources and your textbook, plus the posted set of solved problems, complete and fill in the blanks below. All questions are based upon the Required Textbook: Statistics for Business and Economics by Anderson, Sweeney and
Williams, 11th Ed., 2012, Thomson/South-Western.
Ch-3 ( Learning Objectives)

1. Understand the purpose of measures of location.
2. Be able to compute the mean, median, mode, quartiles, and various percentiles.
3. Understand the purpose of measures of variability.
4. Be able to compute the range, interquartile range, variance, standard deviation, and coefficient of variation. 5. Understand skewness as a measure of the shape of a data distribution. Learn how to recognize when a data distribution is negatively skewed, roughly symmetric, and positively skewed.
6. Be able to compute and interpret covariance and correlation as measures of association between two variables. Ch-5 (Learning Objectives)
1. Understand the concepts of a random variable and a probability distribution.
2. Be able to distinguish between discrete and continuous random variables.
3. Be able to compute and interpret the expected value, variance, and standard deviation for a discrete random variable.
Ch-8: ( Learning Objectives: Only Section 2)
1. Know how to construct and interpret an interval estimate of a population mean and / or a population proportion. 2. Understand and be able to compute the margin of error.
3. Learn about the t distribution and its use in constructing an interval estimate whenis unknown for a

4. Be able to determine the size of a simple random sample necessary to estimate a population mean and/or a population proportion with a specified margin of error.
5. Know the definition of the following terms:

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