Explore BrainMass

Explore BrainMass

    T-Test for Dependent Samples

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Big Time Software Co. has developed a new version of it XD-3 software. They want to determine if the new version of XD-3 is faster then the old version. In a matched sample test they obtained the following results.

    Tester Old Version New Version
    1 2.6 2.8
    2 4.0 5.3
    3 3.8 2.9
    4 1.8 1.1

    A. What is the Null and Alternate hypothesis statement for the matched test?
    B. What is the average difference (D) for the problem?

    C. What is the standard deviation for the matched test?

    © BrainMass Inc. brainmass.com March 4, 2021, 10:11 pm ad1c9bdddf

    Solution Preview

    Null Hypothesis: The new version of XD-3 is not significantly faster ...

    Solution Summary

    This solution is comprised of detailed step-by-step calculations and analysis of the given problems related to Statistics and provides students with a clear perspective of the underlying concepts. The expert provides the solution in an Excel file.