Unemployed
the Data Below Are for the Number of Unemployed

question 22

Essay

Unemployed
The data below are for the number of unemployed persons (in millions)and the federal unemployment insurance payments (in billions of dollars)for the years 1978 - 1985.Some economists state that these two variables are positively related.
$\begin{array}{|l|l|l|l|l|l|l|l|l}\hline \text { Year } & \mathbf{1 9 7 8} & \mathbf{1 9 7 9} & \mathbf{1 9 8 0} & \mathbf{1 9 8 1} & \mathbf{1 9 8 2} & \mathbf{1 9 8 3} & \mathbf{1 9 8 4} & \mathbf{1 9 8 5} \\\hline \text { Federal Unemployment Insurance Payments } & 11.8 & 10.7 & 18.0 & 19.7 & 23.7 & 31.5 & 18.4 & 16.8 \\\hline \text { Number of Unemployed Persons } & 6.2 & 6.1 & 7.6 & 8.3 & 10.7 & 10.7 & 8.5 & 8.3\end{array}$

-A 95% confidence interval for the slope of the population regression line is (2.168,4.897)Explain how to use the confidence interval to test the hypothesis that the population slope is zero using a 0.05 level of significance.

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Definitions:

Lead Time

The amount of time between the initiation and completion of a production process.

Safety Stock

A quantity of inventory kept on hand to protect against fluctuations in demand or supply.

Lead Time

The amount of time that elapses between the initiation of a process and its completion.

Safety Stock

Inventory kept on hand to protect against fluctuations in demand or supply, ensuring that demand can be met without stockouts.