Task 2

An airline company surveyed 95 passengers regarding their experience through the airport. They wanted to examine the level of passenger satisfaction and the time taken to get through the airport. The satisfaction level is measured using scores from 0=Not at all satisfied to 60=Very satisfied. The time through the airport was measured by providing each passenger a card once they had checked in at the airport, then returned to an agent once the passenger had reached the departure lounge, the time was measured in minutes. The following questionnaire was used, and the data was recorded in a filename “AirportJ22.xlsx”.

Required:

a) Produce a well labelled frequency and percentage frequency tables for each of the following variables:

 • Age

• Type (of travel)

b) Draw a well labelled bar chart representing the variable “Age”. 

c) Use Excel formulae to calculate the descriptive statistics (Location and spread) for the variable “Satisfaction”. The descriptive statistics should include the minimum, maximum, both quartiles, mean, median, variance, standard deviation, range and inter-quartile range. Please note that the statistics should be presented correct to a whole number but the mean and standard deviation should be presented correct to the nearest 1 decimal place. You should also show the formulae used for statistics.

d) Draw a well labelled box plot for the variable “Satisfaction” split by “Class” of travel.

e) Draw a scatter diagram of the “satisfaction” score against “time” taken and show the linear regression equation in context (not in x and y). Use an Excel formula to calculate the correlation coefficient (2 decimal place)

Note: All variables should be clearly named, and their correct categories clearly labelled. Graphs should be appropriate and correctly labelled and each of them on the same page. Any calculations should be clearly presented and explained.