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    Data Analysis: Oreo and Market Pantry Cookies

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    Fort he attached data set perform a z-test for proportion and z-test for both brand names. Find the cutoff value for z, sample proportion, standard error, confidence intervals, one and two-tailed test, critical values, and lower/upper limits.

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    Solution Preview

    Null Hypothesis: The proportion of Oreo as actual brand is equal to that as subjected identified brand.
    Alternate Hypothesis: The proportion of Oreo as actual brand is not equal to that as subject identified brand.

    Two Sample Hypothesis Z Test for Proportion

    Actual Brand Subject Identified Brand
    Sample Size 42 ...

    Solution Summary

    The expert examines a data analysis for Oreo and marketing pantry cookies.