Approximately 10% of Americans are left-handed (we will treat this as a known population parameter). A study on the relationship between handedness and profession found that in a random sample of 105 lawyers, 16 of them were left-handed. 1 Test the hypothesis that the proportion of left-handed lawyers differs from the proportion of left-handed Americans. Find the:
a. Test Statistic.
b. P-value.
c. Conclusion of significance level at 5% and 10%.
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