Question

Travelers pay taxes for flying, car rentals, and hotels. The following data represent the total travel tax for a 3-day business trip in eight randomly selected cities.

67.81	78.69	68.99	84.36
80.24	86.14	101.27	99.29

Use Minitab Express to perform a Normality Test on this data. Report your answers rounded to three decimal places, where applicable.

a) In the normal probability plot, the data  (does / does not) stay relatively close to the reference line.

b) The Anderson-Darling test results in a P-value of .
The given data  (does / does not) provide significant evidence to claim that it did not come from a normal distribution.

c) Based on the observations in parts a and b, it  (would / would not) be acceptable to treat this data as though it were normal.

Answer 1

This is normal probability plot constructed using minitab software. As can be seen, all the points stay close to the line implying normality of the data.

b) The Anderson-Darling test results in a P-value of 0.541.
The given data does not provide significant evidence to claim that it did not come from a normal distribution.

c) Based on the observations in parts a and b, it  would be acceptable to treat this data as though it were normal.