Question

In a study, researchers compared the variability in product of a particular piece of equipment to a known analytic capability to decide whether product consistency could be improved. The following data were obtained for 10 batches of product. Preliminary test results suggest the data are normally distributed and that s=0.567. Construct a 90 confidence interval for the process variation of the piece of equipment under consideration.

29.7 |
30.3 |
29.3 |
30.1 |
29.1 |
28.9 |
28.9 |
29.7 |
29.4 |
28.5 |

The 90% confidence interval from blank nothing blank.

(Round to three decimal places as needed.)

Answer #1

In a study, researchers compared the variability in product of
a particular piece of equipment to a known analytic capability to
decide whether product consistency could be improved. The following
data were obtained for 10 batches of product. Preliminary test
results suggest the data are normally distributed and that s=0.558.
Construct a 980% confidence interval for the process variation of
the piece of equipment under consideration.
29.7
28.6
29.7
30.1
29.2
29.4
29.2
28.9
30.5
29.4
The 90% confidence interval...

In a study, researchers compared the variability in product of
a particular piece of equipment to a known analytic capability to
decide whether product consistency could be improved. The following
data were obtained for 10 batches of product. Preliminary test
results suggest the data are normally distributed and that s=0.587.
Construct a 95% confidence interval for the process variation of
the piece of equipment under consideration.
30.1
29.5
30.1
30.2
28.5
29.7
29.1
30.4
30.1
29.5
The 95% confidence interval...

In a study, researchers compared the variability in product of
a particular piece of equipment to a known analytic capability to
decide whether product consistency could be improved. The following
data were obtained for 10 batches of product. Preliminary test
results suggest the data are normally distributed and that s=0.386.
Construct a 98% confidence interval for the process variation of
the piece of equipment under consideration.
29.9
29.2
30.1
29.5
30.1
29.5
29.9
29.8
30.2
29.1
The 98% confidence interval...

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