It has been estimated that 46% of the American workforce are female. a. A representative from...
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It has been estimated that 46% of the American workforce are female. a. A representative from the United States Department of Labor would like to create a 90% confidence interval with a margin of error of 1% for the proportion of female workers just in the medical field. He will use the above proportion of females to calculate the required sample size. What sample size did he determine he needed. b. They decide that it is too costly and labor intensive to collect the sample size calculated in question (a). They decide to select a random sample of 500 Americans working in medical fields to determine the proportion of females. In the sample of 500, 55% were women. Create a 90% confidence interval for the number of women working in medical fields. (Show all your work because you will be graded on the correctness of your methods as well as on the accuracy and completeness of your results) C. If the Department of Labor chose the larger sample size calculated in question (a), explain how the larger sample size would affect the margin of error? d. Should the Department of Labor conclude that the percentage of females working in medical field is higher than the estimated 46% of females in the work force? Explain. It has been estimated that 46% of the American workforce are female. a. A representative from the United States Department of Labor would like to create a 90% confidence interval with a margin of error of 1% for the proportion of female workers just in the medical field. He will use the above proportion of females to calculate the required sample size. What sample size did he determine he needed. b. They decide that it is too costly and labor intensive to collect the sample size calculated in question (a). They decide to select a random sample of 500 Americans working in medical fields to determine the proportion of females. In the sample of 500, 55% were women. Create a 90% confidence interval for the number of women working in medical fields. (Show all your work because you will be graded on the correctness of your methods as well as on the accuracy and completeness of your results) C. If the Department of Labor chose the larger sample size calculated in question (a), explain how the larger sample size would affect the margin of error? d. Should the Department of Labor conclude that the percentage of females working in medical field is higher than the estimated 46% of females in the work force? Explain.
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