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It is believed that animals living in northern regions have shorter appendages than animals living in southern regions. Random samples of birds were selected from each group and wing lengths for birds (in millimeters) were measured. The following table gives summary statistics. Region Northern (N) Southern (S) Difference (d = N-S) Average Standard deviation 33 119.0 1.5 33 120.0 3.1 33 -1.0 1.3 (a) Find a 90% confidence interval for the mean difference of wing lengths of birds between the northern regions and the southern regions. (Round your answers to 4 decimal places, if needed.) (-2.0006 0.0006

It is believed that animals living in northern regions have shorter appendages than animals living in southern regions. Random samples of birds were selected from each group and wing lengths for birds (in millimeters) were measured. The following table gives summary statistics. Region Northern (N) Southern (S) Difference (d = N-S) Average Standard deviation 33 119.0 1.5 33 120.0 3.1 33 -1.0 1.3 (a) Find a 90% confidence interval for the mean difference of wing lengths of birds between the northern regions and the southern regions. (Round your answers to 4 decimal places, if needed.) (-2.0006 0.0006

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Plz help find confidence interval got 2nd question right
It is believed that animals living in northern regions have shorter appendages than animals living in southern regions. Random samples of birds were selected from each group and wing lengths for birds (in millimeters) were measured. The following table gives summary statistics. Region Northern (N) Southern (S) Difference (d = N- S) Average Standard deviation 33 119.0 1.5 33 120.0 3.1 33 -1.0 1.3 (a) Find a 90% confidence interval for the mean difference of wing lengths of birds between the northern regions and the southern regions. (Round your answers to 4 decimal places, if needed.) (-2.0006 0.0006 Your last answer was interpreted as follows: -2.0006 Your last answer was interpreted as follows: 0.0006 anco to cunnert the belief2
Transcribed Image Text:It is believed that animals living in northern regions have shorter appendages than animals living in southern regions. Random samples of birds were selected from each group and wing lengths for birds (in millimeters) were measured. The following table gives summary statistics. Region Northern (N) Southern (S) Difference (d = N- S) Average Standard deviation 33 119.0 1.5 33 120.0 3.1 33 -1.0 1.3 (a) Find a 90% confidence interval for the mean difference of wing lengths of birds between the northern regions and the southern regions. (Round your answers to 4 decimal places, if needed.) (-2.0006 0.0006 Your last answer was interpreted as follows: -2.0006 Your last answer was interpreted as follows: 0.0006 anco to cunnert the belief2
ALBERTA eClass HELP EMAIL 0.0006 (b) Based on this confidence interval, is there enough evidence to support the belief? O Yes, since the interval is completely below 0. O Yes, since the interval contains 0. O No, since the interval is completely below 0. No, since the interval contains 0. Your answer is partially correct. Incorrect answer. (a) Lower bound incorrect. Incorrect answer. (a) Upper bound incorrect. Correct answer, well done. (b) Correct.
Transcribed Image Text:ALBERTA eClass HELP EMAIL 0.0006 (b) Based on this confidence interval, is there enough evidence to support the belief? O Yes, since the interval is completely below 0. O Yes, since the interval contains 0. O No, since the interval is completely below 0. No, since the interval contains 0. Your answer is partially correct. Incorrect answer. (a) Lower bound incorrect. Incorrect answer. (a) Upper bound incorrect. Correct answer, well done. (b) Correct.
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