Question: The regression equation is ,the sample size is 14,and the standard error of the slope is 0.98. what is the test statistic to test whether

The regression equation is ,the sample size is 14,and the standard error of the slope is 0.98. what is the test statistic to test whether the slope is positive? Assume a level of significance of 0.01."

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7. What is the extent (percentage) of errors detected in the information collected?

8. What are the costs of collecting the information?