Are random arrivals at a shoe store at the local shopping centre Poisson distributed? Suppose a shopping centre employee researches this question by gathering data for arrivals during one-minute intervals on a weekday between 6.30 p.m. and 8.00 p.m. Th e data obtained follow. Use 0.05 to determine whether the observed data seem to be from a Poisson distribution.

Transcribed Image Text:

Arrivals per Minute Observed Frequency 0 1 23456 26 40 57 32 17 12 8