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    Z test for proportion

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    A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at least 60%. If 137 out of a random sample of 235 college students expressed an intent to vote, can we reject the aide's estimate at the 0.05 level of significance?

    Perform a one-tailed test. Then fill in the table below.

    Carry your intermediate computations to at least three decimal places and round your answers as specified in the table.

    The null Hypothesis Ho___

    The alternate Hypothesis H1 ___

    The type of test statistic (t, Z, chi square, F) ___

    The value of the test statistic (round to at least three decimal places) ___

    The critical value at the 0.05 level of significance (round to at least three decimal places)___

    Can we reject the aide's estimate that the proportion of college students where intend to vote is at least 60%? yes or no

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    Solution Summary

    The solution provides step by step method for the calculation of Z test for proportion. Formula for the calculation and Interpretations of the results are also included.