The Owner of a Local Nightclub Has Recently Surveyed a Random

question 161

Multiple Choice

The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club.She would now like to determine whether or not the mean age of her customers is greater than 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)\(H _ { 0 } : \boldsymbol { \mu } \geq 30 \text { versus } H _ { 1 } : \boldsymbol { \mu } < 30 \text {. }\)
• B)\(H _ { 0 } : \mu \leq 30 \text { versus } H _ { 1 } : \mu > 30 \text {. }\)
• C)\(H _ { 0 } : \bar { X } \geq 30 \text { versus } H _ { 1 } : \bar { X } < 30\)
• D)\(H _ { 0 } : \bar { X } \leq 30 \text { versus } H _ { 1 } : \bar { X } > 30\)

---

Definitions:

Aggressive Behavior

Actions intended to cause harm or assert dominance over another, which can be verbal, physical, or non-verbal.

Norm Salience

Norm salience refers to the degree to which social norms are perceived as relevant and influential in a given context or situation.

Group Norms

Informal guidelines and rules that members of a group follow, which dictate acceptable behavior and attitudes within the group.

Peer Tutoring

An educational practice where students help each other to learn or understand material, often pairing more knowledgeable students with those needing assistance.