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    Independent sample t test: Sales Consistency

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    AU Cellular believes their sales are more consistent than their rival Softbank Cellular. Below is the number lost calls a day over the last seven days. Do you agree with AU? Use the .01 significance level.

    Softbank, 78, 98, 54, 57, 68, 64, 70
    AU, 75, 81, 81, 40, 82, 75, 35

    - Show formua used and walk through the steps.
    - State the hypotheses and identify the claim
    - Find the critical values
    - Compute the test value
    - Make the decision to reject or not reject the null hypothesis
    - Summarize the results

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    https://brainmass.com/statistics/students-t-test/independent-sample-t-test-sales-consistency-381155

    Solution Preview

    Please see the attachments.

    Hypothesis Testing
    AU cellular believes their sales are more consistent than their rival Softbank cellular. Below is the number lost calls a day over the last seven days. Do you agree with AU? Use the .01 significance level.

    Softbank, 78, 98, 54, 57, 68, 64, 70
    AU, 75, 81, 81, 40, 82, 75, 35

    - Show formula used and walk through the steps.
    - State the hypotheses and identify the claim
    - Find the critical values
    - Compute the test value
    - Make the decision to reject or not reject the null hypothesis
    - Summarize the results

    Answers
    - State the hypotheses and identify ...

    Solution Summary

    The solution provides step by step method for the calculation of testing of hypothesis. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.

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