A British study examined whether the type of background music playing in a restaurant affected the amount of money that diners spent on their meals. The researchers asked a restaurant to alternate silence, popular music, and classical music on successive nights over eighteen days. Each type of music was played for 6 nights (the order was randomly determined to guard against confounding). The type of music played and the amount spent on food and drinks (in British pounds) for each of 393 customers was recorded. The data are summarized below.

-Follow-up 95% confidence intervals are presented below.
• • • The mean amount spent when pop music is playing is significantly lower than the mean amount spent when classical music is playing.

Question

A British study examined whether the type of background music playing in a restaurant affected the amount of money that diners spent on their meals. The researchers asked a restaurant to alternate silence, popular music, and classical music on successive nights over eighteen days. Each type of music was played for 6 nights (the order was randomly determined to guard against confounding). The type of music played and the amount spent on food and drinks (in British pounds) for each of 393 customers was recorded. The data are summarized below.

-Follow-up 95% confidence intervals are presented below.
•

•

The mean amount spent when pop music is playing is significantly lower than the mean amount spent when classical music is playing.

-Follow-up 95% confidence intervals are presented below.
•  •  •  The mean amount spent when pop music is playing is significantly lower than the mean amount spent when classical music is playing.

Quizplus · Accepted Answer

The Answer of A British study examined whether the type of background music playing in a restaurant affected the amount of money that diners spent on their meals.  The researchers asked a restaurant to alternate silence, popular music, and classical music on successive nights over eighteen days.  Each type of music was played for 6 nights (the order was randomly determined to guard against confounding). The type of music played and the amount spent on food and drinks (in British pounds) for each of 393 customers was recorded. The data are summarized below.

-Follow-up 95% confidence intervals are presented below.
•  •  •  The mean amount spent when pop music is playing is significantly lower than the mean amount spent when classical music is playing.

A British Study Examined Whether the Type of Background Music