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    Null and Alternative Hypothesis for ABC

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    1) The average salary of managers in the advertising industry is $180,000 per year. Suppose we would like to take a sample of managers at a new company ABC, to see whether the mean annual salary is different from that of the industry. State the null and alternative hypotheses.

    2) Suppose a sample of 40 managers at ABC showed a sample mean annual salary of $170,000. Assume a population standard deviation of $30,000. With = .05 as the value of significance, what is your conclusion?

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    https://brainmass.com/statistics/hypothesis-testing/null-alternative-hypothesis-abc-518150

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    1) Answer:
    Null hypothesis- The average salary of managers in the advertising industry is $180,000 per year
    Alternative hypothesis- The average ...

    Solution Summary

    Null and alternative hypothesis for ABC are examined.

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