Read each of the research descriptions and determine which of the following woul

Question

Read each of the research descriptions and determine which of the following would be the most appropriate display of the data collected from the research. (A) side-by-side boxplots (B) a histogram (C) a scatterplot (D) a two-way table Write the letter of choice AND provide an explanation, including a) identification of the explanatory and response variables and b) what type of variables they are. 1. A researcher suspects that males and females prefer different colors in cars. He surveys 100 potential car buyers and records their gender and their color preference. 2. A market researcher for a cereal company thinks that the amount of shelf space the cereal gets in a supermarket impacts the weekly sales of the product. He selects a sample of 30 supermarkets and measures the amount of shelf space (in inches) and finds out the weekly sales (in $). A different researcher at the same cereal company thinks that the shelf the cereal is displayed on (top, middle, or bottom) is more important in influencing weekly sales. She collects data from 30 supermarkets about which shelf the product is on and the weekly sales (in $).

Explanation / Answer

Answer:

1).

D. two way table.

The two variables Gender and color in cars are nominal variables. ( Qualitative)

2).

C. scatter plot.

Explanatory variable: Amount of self space

Response variable: Weekly sales.

Both variables are in Ratio scale( quantitative).

3).

A. side by side Box plots

Explanatory variable: self space

Response variable: Weekly sales.

Weekly sales in Ratio scale( quantitative).

Self space in nominal ( qualitative).

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