Project #35925 - statistics

STATISTICS HELP NEEDED 2 PROBLEMS:

 

In 2010, there were 117,538,000 households in the United States. There were 78,833,000 family households made up of married couples, single male, and single female households. To determine how many of each type a survey was undertaken. The results were stored using the codes 1 = married couple, 2 = single male, and 3 = single female. Estimate with 95% confidence the total number of American households with married couples. Source: Adapted from Statistical Abstract of the United States 2009, Table 58. Report results in Excel format.

 

2. Wages and salaries make up only part of a total compensation. Other parts include paid leave, health insurance, and many others. In 2007, wages and salaries among manufacturers in the United States made up an average of 65.8% of total compensation. To determine if this changed in 2008 a random sample of manufacturing employees was drawn. Can we infer that percentage of total compensation for wages and salaries increased between 2007 and 2008? Source: Adapted from Statistical Abstract of the United States, 2009, Table 970. Report results in Excel Format

Subject Mathematics
Due By (Pacific Time) 07/21/2014 02:00 pm
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