According to a Lawyers.com survey, only 35% of adult Americans had a will (The Wall Street Journal, December 12). Suppose a recent survey of 250 adult Americans found 100 adults with wills.
A) Specify the competing hypotheses to determine whether the proportion of adult Americans who have a will differs from the proportion reported.
B) Calculate the value of the test statistic and the p-value.
C) At the 5% significance level, is the proportion different? Explain.

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The Answer of According to a Lawyers.com survey, only 35% of adult Americans had a will (The Wall Street Journal, December 12). Suppose a recent survey of 250 adult Americans found 100 adults with wills.
A) Specify the competing hypotheses to determine whether the proportion of adult Americans who have a will differs from the proportion reported.
B) Calculate the value of the test statistic and the p-value.
C) At the 5% significance level, is the proportion different? Explain.