Question

In: Statistics and Probability

The diameters​ (in inches) of 1717 randomly selected bolts produced by a machine are listed. Use...

The diameters​ (in inches) of 1717

randomly selected bolts produced by a machine are listed. Use a

9999​% level of confidence to construct a confidence interval for

​(a) the population variance σ2

​(b) the population standard deviation σ2

Interpret the results.

4.485
3.823
3.947
4.412
3.751
3.755
4.004
4.239
3.888
4.316
3.936
3.819
4.002
4.155
4.435
3.763
4.553

Solutions

Expert Solution


Related Solutions

The diameters​ (in inches) of 17 randomly selected bolts produced by a machine are listed. Use...
The diameters​ (in inches) of 17 randomly selected bolts produced by a machine are listed. Use a 99​% level of confidence to construct a confidence interval for ​(a) the population variance sigma squared σ2 and ​(b) the population standard deviation sigmaσ. Interpret the results. 4.466 3.805 3.945 4.419 3.772 3.755 4.022 4.247 3.847 4.325 3.976 3.806 4.008 4.154 4.472 3.786 4.573 a) The confidence interval for the population variance is​( FILL IN ​, FILL IN ​). ​(Round to three decimal...
The diameters​ (in inches) of 17 randomly selected bolts produced by a machine are listed. Use...
The diameters​ (in inches) of 17 randomly selected bolts produced by a machine are listed. Use a 90% level of confidence to construct a confidence interval for ​(a) the population variance sigma squaredσ2 and ​(b) the population standard deviation sigmaσ. Interpret the results. 4.481, 3.813, 3.969, 4.423, 3.769, 3.757, 4.005, 4.247, 3.876, 4.347, 3.932, 3.838, 4.002, 4.148 4.453, 3.792, 4.533
The diameters of bolts produced in a machine shop are normally distributed with a mean of...
The diameters of bolts produced in a machine shop are normally distributed with a mean of 5.34 millimeters and a standard deviation of 0.03 millimeters. Find the two diameters that separate the top 8% and the bottom 8%. These diameters could serve as limits used to identify which bolts should be rejected. Round your answer to the nearest hundredth, if necessary
The diameters of bolts produced in a machine shop are normally distributed with a mean of...
The diameters of bolts produced in a machine shop are normally distributed with a mean of 5.58 millimeters and a standard deviation of 0.04 millimeters. Find the two diameters that separate the top 5%and the bottom 5%. These diameters could serve as limits used to identify which bolts should be rejected. Round your answer to the nearest hundredth, if necessary. Answer TablesKeypad If you would like to look up the value in a table, select the table you want to...
The diameters of bolts produced in a machine shop are normally distributed with a mean of...
The diameters of bolts produced in a machine shop are normally distributed with a mean of 5.67 millimeters and a standard deviation of 0.03 millimeters. Find the two diameters that separate the top 9% and the bottom 9%. These diameters could serve as limits used to identify which bolts should be rejected. Round your answer to the nearest hundredth, if necessary.
The diameters of bolts produced in a machine shop are normally distributed with a mean of...
The diameters of bolts produced in a machine shop are normally distributed with a mean of 5.18 millimeters and a standard deviation of 0.07 millimeters. Find the two diameters that separate the top 3% and the bottom 3%. These diameters could serve as limits used to identify which bolts should be rejected. Round your answer to the nearest hundredth, if necessary.
1)The diameters of bolts produced by a certain machine are normally distributed with a mean of...
1)The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.01 inches. What is the probability of selecting a bolt at random that has a diameter larger than 0.328 inches? 2) The diameters of pencils produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.01 inches. What is the probability that the diameter of a randomly selected...
Listed below are the body lengths (in inches) and weights (in lb) of randomly selected bears:...
Listed below are the body lengths (in inches) and weights (in lb) of randomly selected bears: Length 40         64         65         49         47 Weight 65        356       316        94         86 Find the value of the linear correlation coefficient. Letting y represent weights of bears and letting x represent their lengths, find the regression equation. Based on the given sample data, what is the best predicted weight of a bear with a length of 72.0 inch ?
Listed below are the body lengths (in inches) and weights (in lb) of randomly selected bears:...
Listed below are the body lengths (in inches) and weights (in lb) of randomly selected bears: Length 40         64         65         49         47 Weight 65        356       316        94         86 Find the value of the linear correlation coefficient. Letting y represent weights of bears and letting x represent their lengths, find the regression equation. Based on the given sample data, what is the best predicted weight of a bear with a length of 72.0 inch?
The heights (in inches) of 16 randomly selected women aged 25 to 34 are listed below....
The heights (in inches) of 16 randomly selected women aged 25 to 34 are listed below. Compute a 95% confidence interval for the data below: 60.13 65.09 64.18 68.72 63.09 59.15 67.50 64.65 63.80 64.21 58.17 70.28 68.49 62.10 67.73 64.72
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT