Question: In its ninth year, the Barclaycard Business Travel Survey has become an information source for business travelers not only in the United Kingdom but internationally as well. Each year, as a result of the research, Barclaycard Business has been able to predict and comment on trends within the business travel industry. One question asked in two consecutive years was, "Have you considered reducing hours spent away from home to increase quality of life?" The following table represents the responses:
a. Determine if the response to the survey question was independent of the year in which the question was asked. Use a significance level of 0.05.
b. Determine if there is a significant difference between the proportion of travelers who say they have reduced hours spent away from home between the two years.