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Question

A researcher believes that arrivals at a walk-in hair salon are Poisson distributed. The following data represent a distribution of frequency of arrivals in a one hour time period.
Number of Customer Arrivals 0 1 2 3 4 5
Frequency 47 56 39 22 18 10

Using a= 0.10, the observed chi-square value for this goodness-of-fit test is ____.
a) 2.28
b) 14.56
c) 17.43
d) 1.68
e) 2.67

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