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Unformatted text preview: BusinessWeek published information on 283 equity mutual funds. A sample of 40 of those funds appears to the right. Use the data set to answer the following questions. Number of load funds = 18 Number of funds = 40 Point estimate = x / n 0.45 b. Develop a point estimate of the proportion of funds that are classified as high risk. Number of high risk funds = Point estimate = x / n c. Develop a point estimate of the proportion of funds that have a below-average risk rating. Number of low = Number of very low = a. Develop a point estimate of the proportion of the Business Week equity funds that are load funds. A population has a mean of 200 and a standard deviation of 50. A simple random sample of size 100 will be taken and the sample mean will be used to estimate the population mean. a. What is the expected value of x? 200 b. What is the standard deviation of x? 5 5 or what is the standard error c. Show the sampling distribution of x?...
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- Spring '08
- Standard Error