In a survey of 500 randomly selected high school teachers and 1000 randomly selected grade school teachers, 160 (32%) of the high school teachers and 260 (26%) of the grade school teachers cited lack of classroom discipline as a significant problem. Use a chi square test to test the hypothesis that the proportion of teachers who hold this opinion is the same for both populations represented here. Use a significance level of 5%.
Answer to relevant QuestionsIdentify the following variables as either qualitative or quantitative. Also indicate whether the variables are usually numeric or nonnumeric. Variable a. Delivery charge b. SAT score c. Paint color d. Body temperature e. ...The table shows the installed wind power capacity, in megawatts, in 8 western states (To put the numbers in perspective, a single wind turbine typically has a power capacity of 1 to 3 megawatts.) State Capacity ...The 2010 Census reports that 30 states had at least one city with a population of 250,000 or more. The table below shows a more detailed breakdown: Twenty American cities were rated on a scale of 1 to 5 for general “livability” by the American Board of Real Estate Brokers. The ratings (without the city labels) are shown below: 1, 5, 2, 4, 5, 4, 3, 3, 2, 4, 5, 3, 4, ...DeAngelis Global Research is comparing the current economic climate for small businesses in France, Germany and Italy by randomly selecting a sample of 100 small businesses from each country and determining the proportion of ...
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