The Payment Time Case

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    The Payment Time Case

    Grading Guide

    QNT/561 Version 9 2

     

     

     

     

     

     

     

     

     

    The Payment Time Case Grading Guide

     

    QNT/561 Version 9

    Applied Business Research and Statistics

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

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    Individual Assignment: Expansion Strategy and Establishing a Re-order Point

     

    Purpose of Assignment

     

    The purpose of the assignment is to develop students’ abilities in using datasets to apply the concepts of sampling distributions and confidence intervals to make management decisions.

    Resources Required

     

    Microsoft Excel®

    Payment Time Case Study

    Payment Time Case Data Set

     

    Grading Guide

     

    Content

    Met

    Partially Met

    Not Met

    Comments:

    Review the Payment Time Case Study and Data Set.

     

     

     

     

    Develop a 700-word report including the following calculations and using the information to determine whether the new billing system has reduced the mean bill payment time:

     

    • Assuming the standard deviation of the payment times for all payments is 4.2 days, construct a 95% confidence interval estimate to determine whether the new billing system was effective. State the interpretation of 95% confidence interval AND state whether or not the billing system was effective.

     

    • Using the 95% confidence interval, can we be 95% confident that µ ≤ 19.5 days?

     

    • Using the 99% confidence interval, can we be 99% confident that µ ≤ 19.5 days?

     

    • If the population mean payment time is 19.5 days, what is the probability of observing a sample mean payment time of 65 invoices less than or equal to 18.1077 days?

     

     

     

     

     

     

     

    Total Available

    Total Earned

     

     

     

    3

    #/3

     

     

     

     

     

    Writing Guidelines

    Met

    Partially Met

    Not Met

    Comments:

    The paper—including tables and graphs, headings, title page, and reference page—is consistent with APA formatting guidelines and meets course-level requirements.

     

     

     

     

    Intellectual property is recognized with in-text citations and a reference page.

     

     

     

     

    Paragraph and sentence transitions are present, logical, and maintain the flow throughout the paper.

     

     

     

     

    Sentences are complete, clear, and concise.

     

     

     

     

    Rules of grammar and usage are followed including spelling and punctuation.

     

     

     

     

     

     

    Total Available

    Total Earned

     

     

     

    2

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    Assignment Total

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    5

    #/5

     

    Additional comments:

     

     

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