Classify the two given samples as independent or dependent. Sample 1: The gas mileage for 48 trucks Sample 2. The gas mileage for 36 cars Choose the correct answer below. A. The two given samples are independent because different vehicles were sampled. B. The two given samples are dependent because the same vehicles were sampled. C. The two given samples are dependent because different vehicles were sampled. D. The two given samples are independent because the same vehicles were sampled.

What is a scatter plot?

With \( P \)-value \( =0.000 \) and \( \alpha=0.05 \), should we reject \( H_{0} \) ? yes no

A regression was run to determine if there is a relationship between hours of TV watched per day \( (\mathrm{x}) \) and number of situps a person can do \( (y) \). The results of the regression were: \( \begin{array}{l}\mathrm{y}=\mathrm{ax}+\mathrm{h} \\ \mathrm{a}=2.389 \\ \mathrm{~b}=37.535 \\ \mathrm{r}^{2}=0.412164 \\ \mathrm{r}=-0.642\end{array} \) Use this to predict the number of situps a person who watches 0.5 hours of TV can do (ta one decimal place)

How do you identify the relationship between two variables in a scatter plot?

Knowing that \( 99.7 \% \) of all \( z \)-scores are between -3 and +3 , what is the \( P \)-value for \( z=-5.14 \) ? 0.000 0.0514 0.2981