The Next Questions Are Based on the Following Information

question 74

Multiple Choice

The Next Questions Are Based On The Following Information:
The manufacturer of a new chewing gum claims that at least 80% of dentists surveyed prefer their type of gum and recommend it for their patients who chew gum.An independent consumer research firm decides to test their claim.The findings in a sample of 200 dentists indicate that 74.1% of the respondents do actually prefer their gum.
-What is the decision rule?

• A)Reject H₀ if ( - P₀)/ > z_α/2
• B)Reject H₀ if ( - P₀)/ > z_α
• C)Reject H₀ if ( - P₀)/ < -z_α/2
• D)Reject H₀ if ( - P₀)/ < -z_α

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Definitions:

Igneous

Pertains to rocks or minerals that have solidified from molten or partially molten material, indicative of volcanic or magmatic origin.

Metamorphic

Rock that has undergone transformation through heat, pressure, or chemically active fluids, altering its original composition or structure.

Sedimentary

Relating to rocks formed by the accumulation and consolidation of mineral and organic particles deposited by water, air, or ice.

Clastic

A material consisting of pieces (clasts) derived from preexisting rocks; usually formed on Earth’s surface in low-temperature environments; syn. detrital.