Question

in 2013, the average girl scout in new york city sold 96 boxes of cookies. the leader of troop 5078 in new york city wants to know if the scouts in her troop sold more cookies than the average in new york city. she randomly samples 50 girls in troop 5078 and records the number of boxes of cookies sold for each girl in the sample. here are the null and alternative hypotheses for her study: $h_0:mu = 96, h_a:mu>96$. what does $mu$ represent in these hypotheses? a. mean number of boxes of cookies sold for the girl scouts in her sample from troop 5078 b. mean number of boxes of cookies sold for the average girl scout in new york city c. mean number of boxes of cookies sold for the girl scouts in troop 5078

Explanation:

In hypothesis - testing for population parameters, $\mu$ represents the population mean. Here, the leader is comparing the mean number of cookies sold by girls in Troop 5078 to the New - York City average. So, $\mu$ is the mean number of boxes of cookies sold for the Girl Scouts in Troop 5078.

Answer:

C. Mean number of boxes of cookies sold for the Girl Scouts in Troop 5078