In real life, disputes often occur between consumers and product producers, sellers or service providers. After a dispute, consumers often complain to consumer associations. In order to evaluate the service quality of several industries, consumer associations take different enterprises in retail, tourism and aviation as samples, and then count the number of complaints from consumers to enterprises in the last year (assuming the scale of enterprises and the service targets are the same). Generally speaking, the more complaints received, the worse the service quality. The consumer association wants to know whether there are significant differences in the service quality of these three industries. Some data are as follows (data are fictitious and have no practical significance):

Analyze whether there are differences in service quality among the three industries. Taking "industry" as the independent variable and "number of complaints" as the dependent variable, one-way ANOVA was conducted. The results are as follows:

As can be seen from the above table, the average value of retail industry is 49.929 and the standard deviation is 9.068. The average value of tourism is 28, and the standard deviation is 4.3 15. The standard deviations of airlines are 34.333 and 7.45 1. It can be seen that there are differences between the three, and the number of complaints in the retail industry is relatively high. The F value of the single factor variance model is 34.244, and the P value is far less than 0.05, which shows that there are significant differences among them. You can also use the graphic method to describe the average comparison of the three: