A Statistics Professor Wants to See If More Than 80 $\mathrm { H } _ { 0 } : p < 0.80$

question 13

Multiple Choice

A statistics professor wants to see if more than 80% of her students enjoyed taking her class. At the
End of the term, she takes a random sample of students from her large class and asks, in an
Anonymous survey, if the students enjoyed taking her class. Which set of hypotheses should she
Test?

• A) \(\mathrm { H } _ { 0 } : p < 0.80\)
• \(\mathrm { H } _ { \mathrm { A } } : p \neq 0.80\)
• B) \(\mathrm { H } _ { 0 } : p > 0.80\)
• \(\mathrm { H } _ { \mathrm { A } } : p = 0.80\)
• C) \(\mathrm { H } _ { 0 } : p = 0.80\)
• \(\mathrm { H } _ { \mathrm { A } } : p > 0.80\)
• D) \(\mathrm { H } _ { 0 } : p < 0.80\)
• \(\mathrm { H } _ { \mathrm { A } } : p > 0.80\)
• E) \(\mathrm { H } _ { 0 } : p = 0.80\)
• \(\mathrm { H } _ { \mathrm { A } } : p < 0.80\)

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Definitions:

May Coffee Futures

Contracts for the future delivery of coffee that are due in May, used for hedging and speculative purposes in the commodities market.

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The final value at which a futures contract is settled upon expiration or closing.

Call Option

A financial contract that gives the buyer the right, but not the obligation, to buy an asset at a predetermined price within a specific time period.