Hydraulic fracturing, or “fracking”, is the process of drilling below the surface of the earth and injecting liquid at high pressure into rock formations to extract oil and natural gas. As more states have approved fracking, an increasing number of U.S. adults have expressed concerns about its safety. A 2016 Gallup survey asked U.S. adults, “Do you favor or oppose hydraulic fracturing, or fracking, as a means of increasing the production of natural gas and oil in the U.S.?” The survey results are shown below. Support 36% Oppose 51% No Opinion 13% Which of the following scenarios would be the best use of a chi-square goodness-of-fit test? a. Researchers want to determine the proportions of all U.S. adults who support, oppose, or have no opinion about the increase of fracking in the U.S. b. Researchers want to determine if U.S. adults’ views towards fracking in 2018 are different than U.S. adults’ views towards fracking were in 2016. c. Researchers want to determine if the proportion of all U.S. adults who oppose fracking is greater than the proportion of all U.S. adults who support fracking. d. Researchers want to determine whether U.S. adult males support fracking at a higher rate than U.S. adult females.
Hydraulic fracturing, or “fracking”, is the process of drilling below the surface of the earth and injecting liquid at high pressure into rock formations to extract oil and natural gas. As more states have approved fracking, an increasing number of U.S. adults have expressed concerns about its safety. A 2016 Gallup survey asked U.S. adults, “Do you favor or oppose hydraulic fracturing, or fracking, as a means of increasing the production of natural gas and oil in the U.S.?” The survey results are shown below. Support 36% Oppose 51% No Opinion 13% Which of the following scenarios would be the best use of a chi-square goodness-of-fit test?
a. Researchers want to determine the proportions of all U.S. adults who support, oppose, or have no opinion about the increase of fracking in the U.S.
b. Researchers want to determine if U.S. adults’ views towards fracking in 2018 are different than U.S. adults’ views towards fracking were in 2016.
c. Researchers want to determine if the proportion of all U.S. adults who oppose fracking is greater than the proportion of all U.S. adults who support fracking.
d. Researchers want to determine whether U.S. adult males support fracking at a higher rate than U.S. adult females.
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