For the data provided in given Exercise, use the 0.05 level in testing whether the sample could have been drawn from a Poisson population with λ = 1.5.
Exercise
It has been reported that 10.3% of U.S. households do not own a vehicle, with 34.2% owning 1 vehicle, 38.4% owning 2 vehicles, and 17.1% owning 3 or more vehicles. The data for a random sample of 100 households in a resort community are summarized in the frequency distribution below. At the 0.05 level of significance, can we reject the possibility that the vehicle-ownership distribution in this community differs from that of the nation as a whole?
|
Number of Vehicles Owned
|
Number of Households
|
|
0
|
20
|
|
1
|
35
|
|
2
|
23
|
|
3 or more
|
22
|
|
|
100
|