The Owner of a Local Jazz Club Has Recently Surveyed $\mu$

question 34

Multiple Choice

The owner of a local Jazz Club has recently surveyed a random sample of n = 200 customers of the club.She would now like to determine whether or not the mean age of her customers is over 30.If so,she plans to alter the entertainment to appeal to an older crowd.If not,no entertainment changes will be made.The appropriate hypotheses to test are:

• A) H₀: \(\mu\) = 30 vs.H₁: \(\mu\) \(\lt\) 30.
• B) H₀:\(\mu\) =30 vs.H₁: \(\mu\)\(\gt\)30.
• C) H₀:= 30 vs.H₁:\(\lt\) 30.
• D) H₀:= 30 vs.H₁:\(\gt\) 30.

---

Definitions:

Hypotheses

Proposed explanations or predictions for a phenomenon, made as a starting point for further investigation.

Indirect Observations

Observations made through the use of instruments or tools rather than through direct sensory experience.

Replicable

Capable of being repeated or duplicated under similar conditions, allowing for verification of results.

Perfect Objectivity

An ideal state of being unbiased and impartial, free from personal feelings or opinions.