Question: a multiple regression is calculated by the analyst using only one independent variable. contains a Chi-square test, an independent samples t-test and a z-test. allows

a multiple regression

is calculated by the analyst using only one independent variable.
contains a Chi-square test, an independent samples t-test and a z-test.
allows the analyst to control for the effects of other independent variables.
all of the above

A researcher has created a dataset of daily unleaded gas prices at a local gas station, and daily presidential approval ratings from the polling aggregator website fivethirtyeight.com. The researcher is interested in discovering whether there is a relationship between a common consumer good and government economic performance.

The Pearson correlation for President Trump's 2019-2021 daily approval rating and daily unleaded gas price (N = 751) is:

r = -.12

The Pearson correlation for President Biden's 2021 daily approval rating and daily unleaded gas price (N = 321) is:

r = -.69

QUESTIONS

The gas price-presidential approval Pearson correlation for President Trump is

a. moderate and negative.

b. strong and negative.

c. weak and negative.

d. none of the above.

Based on the strength and direction of the Pearson correlation, increases in gas prices are associated with _____ in approval for President Trump in 2019-2021.

a. neither an increase nor a decrease

b. an increase

c. a decrease

The gas price-presidential approval Pearson correlation for President Biden is

a. moderate and negative.

b. strong and negative.

c. weak and negative.

d. none of the above.

Based on the strength and direction of the Pearson correlation, increases in gas prices are associated with _____ in approval for President Biden in 2021.

a. neither an increase nor a decrease

b. an increase

c. a decrease

Which is the strongest Pearson correlation?

a. gas prices and approval for President Trump

b. gas prices and approval for President Biden

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