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"Ozzie and Harriet Don't Live Here Anymore" (San Luis Obispo Tribune, February 26, 2002) is the title of an article that looked at the changing makeup of America's suburbs. The article states that nonfamily households (e.g., homes headed by a single professional or an elderly widow) now outnumber married couples with children in suburbs of the nation's largest metropolitan areas. The article goes on to state:
In the nation's 102 largest metropolitan areas, "nonfamilies" comprised 29 percent of households in 2000, up from 27 percent in 1990. While the number of married-with-children homes grew too, the share did not keep pace. It declined from 28 percent to 27 percent. Married couples without children at home live in another 29 percent of suburban households. The remaining 15 percent are single-parent homes.
Use the given information on type of household in 2000 to construct a frequency distribution and a bar chart. (Be careful to extract the 2000 percentages from the given information).
the mean resting pulse rate for a large group of varsity athletes was 72 with a standard deviation of 9.46. what
Assume independent events. Why might the assumption of independence be violated? (b) Why might a driver be tempted not to use a seat belt "just on this trip"?
Is this result adequate to conclude that monkeys spent significantly more time with softer mother than would be expected if there were no preference? Use the two-tailed test with α = .05.
A firm plans to hire 100 employees during the year. It expects that 25 of these employees will obtain graduate degrees within the next 5 years of being hired.
a large tank of fish from a hatchery is being delivered to a lake. the hatchery claims that the mean length of fish in
For people with a certain disease, the length of time Y spent in remission is described by the following pdf
Show that if (a_n)[n=1,infinity] and (b_n)[n=1,infinity] are equivalent sequences of rationals, then (a_n)[n=1,infinity] is a Cauchy sequence if and only if (b_n)[n=1,infinity] is a Cauchy sequence.
question for the following dataa. find the regression equation for predicting y from x.b. use
a young couple eve and steven want to divide their main household chores shopping cooking dishwashing and laundering
Using a .05 level of significance, is there evidence of a difference in the average time to assemble a part between the two programs? Please write the null and alternative hypotheses for both 1 and 2
Can the college conclude that the students in the new program are significantly different from the rest of the freshman class? Use a two-tailed test with α=.05.
Then, give two examples of correlation which are evaluated in a business environment and discuss the decision made by evaluating the correlation.
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