6.The National Association of Realtors estimates that 23% of all homes purchased in 2004 were considered investment properties. If a sample of 800 homes sold in 2004 is obtained what is the probability that between 175 and 200 homes are going to be used as investment property? Hint: Convert to proportions. According to the Central Limit Theorem, how do you describe the distribution of sample proportions?

7.A survey of 2690 musicians showed that 361 of them are left-handed. Finda 95% confidence interval estimatefor the population proportion of musicians that are left handed. Round to the nearest dollar. You must show all the necessary computations. What is the margin of error?

Whats the final conclusion in words and in the context of the problem.