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Use the following scenario and data for all the questions A survey of data base administrators is conducted. In a random sample of found to
Use the following scenario and data for all the questions A survey of data base administrators is conducted. In a random sample of found to have over 10 years of experience. Construct a proportion , of them were confidence interval for the population of data base administrators with over 10 years of experience. ____________________________________________________________ The sample proportion of data base administrators having over 10 years of experiences is closest to 63 1.645 4.2 42 none of the above QUESTION 2 The half width of this confidence interval is closest to 0.0033 0.0403 0.0663 0.0790 none of the above QUESTION 3 The left limit of this confidence interval is closest to 0.4990 0.4863 0.3537 0.3140 none of the above QUESTION 4 The right limit of this confidence interval 0.4990 0.4863 is closest to 0.3537 0.3410 none of the above QUESTION 5 The conclusion is With 90% confidence, With 90% confidence, With 90% confidence, With 90% confidence, none of the above
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