Question

According to the United National Environmental Program and World Health Organization, in Mumbai, India, air pollution standards for particulate matter are exceeded an average of 5.6 days in every three-week period. Assume that the distribution of number of days exceeding the standards per three-week period is Poisson distributed.

Appendix A Statistical Tables

(Round your answers to 4 decimal places.)

a. What is the probability that the standard is not exceeded on any day during a three-week period?

b. What is the probability that the standard is exceeded exactly six days of a three-week period?

c. What is the probability that the standard is exceeded 15 or more days during a three-week period?

If this outcome actually occurred, what might you conclude? If it actually occurred, the researcher would question the Lambda value as                                                           too hightoo low for this period.

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Answer 1