IGN News wants to construct a 97% confidence interval for the proportion of households in California who own a gaming console. a. A previous survey conducted in 2012 estimated the proportion to be 0.34. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.03? b. Estimate the sample size needed if no estimate for p is available. c. If IGN News wanted to estimate the proportion in the entire United States rather than in just California, would the necessary sample size be larger, smaller, or about the same? Larger Smaller The Same