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Your Economics instructor assigns your class to investigate factors associated with the gross domestic product (GDP) of nations. Each student examines a different factor (such as Life Expectancy, Literacy Rate, etc.) for a few countries and reports to the class.
Apparently, some of your classmates do not understand Statistics very well because you know several of their conclusions are incorrect. Explain the mistakes in their statements below.
a) My correlation of -077.2 shows that there is almost no association between GDP and Infant Mortality Rate.
b) There was a correlation of 0.44 between GDP and Continent.
Assuming that the natural tolerances (or process spread) for all four components are equal to each other and that the specifications barely match the natural tolerance limits, find the tolerances on the individual components.
the body mass index bmi of an individual is one measure that is used to judge whether an individual is overweight or
the random walk theory of prices of securities states that price movements in disjoint time periods are independent of
1)Find the margin of error for the given values of C, S, and N. C=0.95, S=3.8, N=64. E=? round 3 decimal places
The accompanying table shows proportions of computer salespeople classified according to marital status and whether they left their jobs or stayed over a period of 1 year
the business school club contains 25 members. members must be either a finance major or an accounting major. there are
Recalculate the confidence interval. Using the results, describe the effect of an outlier or extreme value on the confidence interval.
A representative of the Environmental Protection Agency (EPA) wants to select samples from 10 landfills. The director has 15 landfills from which she can collect samples. How many different samples are possible?
Test hypothesis that intake of linoleic acid in this group is lower than that of general population. Also, calculate p-value for hypothesis test.
Select two entities (such as two hospitals or two countries). Using credible, published data, identify the crude death rate, infant mortality rate, and incidence rate from an infectious disease that is common to both entities. Using these data, co..
According to a recent survey, the salaries of assistant professors have a mean of $41750 and a standard deviation of $7000. Assuming that the salaries of assistant professors follow a normal distribution, find the proportion of assistant professors..
you are given the following information obtained from a random sample of 5 observations taken from a large
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