[All Steps] The number of credit cards carried by students can be modelled using the Poisson distribution. A sample of students generated the following data
Question: The number of credit cards carried by students can be modelled using
the Poisson distribution. A sample of students generated the following
data
Find the sample size n, and hence the sample mean \(\bar{X}\) . Use this information
to calculate a 95% confidence interval for the average number
of credit cards carried by students.
Deliverable: Word Document 
![[All Steps] Repeat all calculations for the](/images/solutions/MC-solution-library-59605.jpg "[All Steps] Repeat all calculations for the confidence intervals")
[All Steps] Repeat all calculations for the confidence intervals
![[See Solution] Tables show that the 95%](/images/solutions/MC-solution-library-59606.jpg "[See Solution] Tables show that the 95% critical values for some")
[See Solution] Tables show that the 95% critical values for some
(Solution Library) Suppose that n = 9, X̄ = 85 and the sample
![[Steps Shown] A random sample of 10](/images/solutions/MC-solution-library-59608.jpg "[Steps Shown] A random sample of 10 flights from Amsterdam to Paris")
[Steps Shown] A random sample of 10 flights from Amsterdam to Paris
(Steps Shown) A random sample of n = 121 sales invoices was taken
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