Sami Schmitt Believes That Number of Cars Arriving at His $\alpha$

question 75

Multiple Choice

Sami Schmitt believes that number of cars arriving at his Scrub and Shine Car Wash follow a Poisson distribution. He collected a random sample and constructed the following frequency distribution to test his hypothesis.
Using $\alpha$ = 0.05,the critical value of chi-square for this goodness-of-fit test is ____.

• A) 9.49
• B) 7.81
• C) 7.78
• D) 11.07
• E) 12.77

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