Find the point estimate of interstate conference

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The Interstate Conference of Employment Security Agencies says the average workweek in the United States is down to only 35 hours. larger because of a rise in part-time workers. Suppose this ?gure was obtained from a random sample of 20 workers and that the standard deviation of the sample was 4.3 hours. Assume hours worked per week are normally.' distributed in the population. Use this sample information to develop a 98% con?dence interval for the population variance of the number of hours worked per week for a worker. What is the point estimate?

Reference no: EM132855120

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