- What is an appropriate null hypothesis for this problem?- What is the critical value for this problem?- What is the expected value for the luxury cars?- What is the chi squared value for this problem rounded to 2 decimal places?- What should the decision be?

In a recent year U.S. retail automobile sales were categorized as listed below. luxury 16.0% large 4.6% midsize 39:8% small 39.6% A random sample of 150 recent purchases indicated the following results: 25 were luxury models, 12 were large cars, 60 were midsize, and 53 were small. At the 0.10 level of significance, is there sufficient evidence to conclude that the proportions of each type of car purchased differed from the report