Chapter 12: Q. 62 (page 721)
62. If the level of significance is and the -value is , what conclusion can you draw?
Short Answer
The conclusion is that these two variables aren't correlated. Therefore, do not reject the null hypothesis.
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Chapter 12: Q. 62 (page 721)
62. If the level of significance is and the -value is , what conclusion can you draw?
The conclusion is that these two variables aren't correlated. Therefore, do not reject the null hypothesis.
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If the level of significance is 0.05 and the p-value is 0.04, what conclusion can you draw?
Due to erosion, a river shoreline is losing several thousand pounds of soil each year. A linear equation that expresses the total amount of soil lost per year is .
How many pounds of soil does the shoreline lose in a year?
64. What is the process through which we can calculate a line that goes through a scatter plot with a linear pattern?
A credit card company charges when a payment is late, and a day each day the payment remains unpaid.
Is the equation linear? Why or why not?
Table 12.22 gives the gold medal times for every other Summer Olympics for the women’s \(100-\)meter freestyle (swimming).

a. Decide which variable should be the independent variable and which should be the dependent variable.
b. Draw a scatter plot of the data.
c. Does it appear from inspection that there is a relationship between the variables? Why or why not?
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