O10. Are there any gender differences regarding what kind of beer one prefers? This was the question in a survey commissioned by the German beer brewery "German beer". The brewery produces three types of beer; "Light ale", "lager" and "best bitter". If it were to be found that there are gender differences in preference for these beer types, marketing can be made more targeted. A random sample of beer consumers was taken where they also indicated which beer type was highest on the wish list. The survey gave the following results. Light Ale Lager Best Bitter Min 20 40 20 Kvinnor 30 30 10 Test if what kind of beer one prefer is independent of gender. Perform the test on the 5% level. (15p) A complete answer should be given that is easy to follow step by step