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    Sandhya Sharma

    106036
    Mar 2008
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    • Responses: 2783
    • Library Solutions: 994

    Education

    • BSc, Meerut University, 1987
    • MSc, Meerut University, 1989
    • MPhil, Institute of Advanced Studies, 1990

    Subjects

    • Mathematics
    • Physics
    • Chemistry
    • Statistics

    Sandhya's BrainMass Content

    Solution Library

    Applied statistics in business and economics

    Prepare answers to the following assignments from the e-text, Applied Statistics in Business and Economics, by Doane and Seward:

    Chapter 10 - Chapter Exercises
    10.30
    In Dallas, some fire trucks were painted yellow (instead of red) to heighten their visibility. During a test period, the fleet o READ MORE »

    Statistics / Hypothesis Testing » 186005

    A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. (a) Construct a 90 percent confidence interval for the true mean weight.

    8.46 A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were
    3.087, 3.131, 3.241, 3.241, 3.270, 3.353, 3.400, 3.411, 3.437, 3.477
    (a) Construct a 90 percent confidence interval for the true mean weight. (b) What READ MORE »

    Statistics / Hypothesis Testing / Frequentist Inference / Confidence Interval » 171876

    Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead.

    Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 10 or below. The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean READ MORE »

    Statistics / Hypothesis Testing / Parametric Tests / Student's t-Test » 174046

    Finding critical path, expected completion time & probability of the job taking more than 50 working days

    *18. DEF A/C Remodelers has contracted to reconfigure the interior of a large corporate A/C. The project manager has determined that there are 11 steps to the process. In consultation with the project foreman he has determined the sequence and precedent for the 11 events, labeled A - K, and has READ MORE »

    Statistics / Descriptive Statistics / Quantative Analysis of Data / Central Tendency » 220507
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