1.A ______________________ provides additional information about variability. a.Point estimate b.Confidence estimate c.Confidence interval d.Point interval 2....

1.A ______________________ provides additional information about variability. a.Point estimate b.Confidence estimate c.Confidence interval d.Point interval

2. ________________________ is the amount added and subtracted to the point estimate to form the confidence interval. a.Standard error b.Sampling error c.Sampling mean d.Margin of error

3. A sample of 36 sheets of metal from a large normal population has a mean thickness of 30 mm. We know from previous quality control testing that the population standard deviation is 3.3 mm. Develop a 95% confidence interval for the true mean for the population.

4. A random sample of 16 people has a mean age = 40 years old and a sample standard deviation of 5 years. Form an 80% confidence interval for the mean.

Expert Solution

Confidence interval calculation.

orchestra answered 1 year ago

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