A confidence interval addresses this issue because it provides a range of values which is likely to contain the population parameter of interest. Confidence levels. Confidence intervals are constructed at a confidence level, such as 95 %, selected by the user.
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Introduction. Born in Jamaica, Marcus Garvey (1887-1940) became a leader in the black nationalist movement by applying the economic ideas of Pan-Africanists to the immense resources available in urban centers.fter arriving in New York in 1916, he founded the Negro World newspaper, an international shipping company called Black Star Line and the Negro Factories Corporation. During the 1920s, his Universal Negro Improvement Association (UNIA) was the largest secular organization in African-American history.