Mathematics, 22.04.2020 00:49 bridgetosanders
A survey of data base administrators is conducted. In a random sample of equation, n=150, x=63 of them were found to have over 10 years of experience. Construct 1-a=0.90 confidence interval for the population proportion p of data base administrators with over 10 years of experience.1) The sample proportion of data base administrators having over 10 years of experiences is closest toa.63 b.1.645 c.4.2 d.42 e. none of the above2) The half width of this confidence interval is closest to a.0.0033 b.0.0403 c.0.0663 d.0.0790 e. none of the above3) The left limit of this confidence interval L is closest to a.0.4990 b.0.4863 c.0.3537 d.0.3140 e. none of the above4) The right limit of this confidence interval R is closest to a.0.4990 b.0.4863 c.0.3537 d.0.3410 e. none of the above5) The conclusion is a. With 90% confidence, 0.3410 < p < 0.4863 b. With 90% confidence, 0.3537 < p < 0.4990 c. With 90% confidence, 0.3410 < p < 0.4990 d. With 90% confidence, 0.3537 < p < 0.4863 e. none of the above
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A survey of data base administrators is conducted. In a random sample of equation, n=150, x=63 of th...
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