Jennifer Cantu,VP of Customer Services at Tri-State Auto Insurance,Inc.,monitors the claims processing time of the claims division. Her standard includes "a mean processing time of 5 days or less." Each week,her staff checks for compliance by analyzing a random sample of 60 claims. Jennifer's null hypothesis is ________. A) $\mu$ 5 B) $\sigma$ 5 C) n = 60 D) $\mu$

Question

Jennifer Cantu,VP of Customer Services at Tri-State Auto Insurance,Inc.,monitors the claims processing time of the claims division. Her standard includes "a mean processing time of 5 days or less." Each week,her staff checks for compliance by analyzing a random sample of 60 claims. Jennifer's null hypothesis is ________.
A) $\mu$ > 5
B)  $\sigma$ > 5
C) n = 60
D) $\mu$ < 5
E) $\mu$ = 5

Quizplus · Accepted Answer

The null hypothesis represents the status quo or the condition that is assumed to be true unless evidence suggests otherwise. In this case, Jennifer's standard is a mean processing time of 5 days or less, so the null hypothesis would be that the mean processing time is equal to 5 days.

Jennifer Cantu,VP of Customer Services at Tri-State Auto Insurance,Inc μ\muμ > 5 B)

Jennifer Cantu,VP of Customer Services at Tri-State Auto Insurance,Inc $\mu$ > 5
B)