QNT 275 Week 2 Participations

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QNT 275 Week 2 Participations
QNT 275 Week 2 Participations
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QNT 275 Week 2 Participation Obtaining a Suitable Sample

Watch the “Obtaining a Suitable Sample” video.

Consider the following as you watch:

  • Discuss the difference between convenience and random sampling.

  • Explain how you can obtain a sample size representative of a population.

  • Provide three examples.

  • Explain why a sample is used in place of the population.

QNT 275 Week 2 Participation Measuring Central Tendency and Variability

Watch the “Measuring Central Tendency and Variability” video.

Consider the following as you watch:

  • Define the three standard measurements of the central tendency and provide example of each.

  • Explain when you might want to use a median number.

  • Provide an example.

  • Define a standard deviation and what a standard deviation shows, provide an example.

 

QNT 275 Week 2 Participation Statistics Intro: Mean, Median, and Mode

Watch the “Statistics Intro: Mean, Median, and Mode” video.

Consider the following as you watch:

  • Explain how mean is calculated.

  • Explain how a median is calculated with an even number list.

  • Define an array.

  • Provide an example.

  • Define a mode.

  • Identify if you can have more than one modal number in a set of data.

Note: All Khan Academy content is available for free at www.khanacademy.org.

 

QNT 275 Week 2 Participation Finding the Range and Mid-Range

Watch the “Finding the Range and Mid-Range” video.

Consider the following as you watch:

  • Define a range and provide two examples.

  • Calculate a mid-range and provide two examples.

Note: All Khan Academy content is available for free at www.khanacademy.org.

 

QNT 275 Week 2 Learning Team Collaborative Discussion: Descriptive Statistics

Read Case Study 3.3 in Ch. 3 of Essentials of Business Statistics found on page 98.

Click the Fort Myers Sales Data Set link.

Calculate descriptive statistics:the mean, median, mode, and standard deviation in the two sample periods (January and July).

Discuss one of the following:

  • Identify what changes occurred in the Fort Myers housing market during the 6-month period.

  • Explain what conclusions you can draw from the data.

  • Identify what additional data you might want to understand the housing market better.

  • Explain what role descriptive statistics play in understanding the housing market.