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Most US adults have social ties with a large number of people, including friends, family, co-workers, and other acquaintances. It is nearly impossible for most people to reliably list all the people they know, but using a mathematical model, social analysts estimate that, on average, a US adult has social ties with 634 people.1A survey of 1700 randomly selected US adults who are cell phone users finds that the average number of social ties for the cell phone users in the sample was 664 with a standard deviation of 778. Does the sample provide evidence that the average number of social ties for a cell phone user is significantly different from 634, the hypothesized number for all US adults?
questiona discuss what is meant by quality control and quality improvement. b what are the limitations of a quality
max z 3x 9ysubject to 20x 32y 16004x 2y 240y 40x y 0at the optimal solution what is the amount of slack
In an online survey of 4001 respondents, 8% were classified as productivity enhancers who are comfortable with technology and use the internet for its practical value. Suppose you select a sample of 400 students at your school, and the population ..
Formulate an 84% interval estimate for the true proportion of employees within one year of retirement in the entire corporation.
Describe the context of the data set. Cite a previous description if the same data set is used from a previous assignment. To increase formal tone of the DAA, avoid first-person perspective "I." For example, do not write, "I ran a scatter plot sho..
a new muscle relaxant is available. researchers from the firm developing the relaxant have done studies that indicate
Identify any points that lie outside a 95% Confidence Level (Mean plus or minus two standard deviations) using the above winter mean and standard deviation. Explain your answer. Graph the data.
Concrete blocks are to be used in the foundations of several buildings. The specifications state that the minimum arithmetic mean compressive strength of a sample of blocks must be 1,000 pounds per square inch (psi).
Why is it important that a sample be random and representative when conducting hypothesis testing?
in establishing a set of hypotheses which we are testing we rely on the standard error. what two parameters are used to
A cyclist traveled at a rate of 32 mph to visit a nearby town. The cyclist averaged 10 mph on the return trip. If the round trip took 6.3 hours, find the distance to the nearby town.
include a title page with your assignment in current apa. answers must be clearly labeled and appear in consecutive
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