As practiced by many in buying skirts or pants, they use the neckline to check if the waistline of the skirts or pants fits them. We would like to study this claim by using a random sample of neckline and waistline of 15 people. The data collected are summarized in the table. Subject 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Neckline (in cm) 33 30 40 35 42 39 35 37 39 39 44 44 42 32 41 Waistline (in cm) 83 68 71 78 96 92 67 76 84 83 96 98 101 73 77 For ALL computations, do not use rounded values in your calculation. Try to use as much information (include as many digits after the decimal point) as you can from previously computed values. For ALL computations, if the answer is not a whole number, round off to the nearest hundredths. Compute the sample correlation coefficient of neckline and waistline: 1. SPXY = 2. SSX = 3. SSY = 4. r = Test the significance of the correlation coefficient at the 5% level of significance. 5. Compute the test statistic:
As practiced by many in buying skirts or pants, they use the neckline to check if the waistline of the skirts or pants fits them. We would like to study this claim by using a random sample of neckline and waistline of 15 people. The data collected are summarized in the table.
| Subject | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| Neckline (in cm) | 33 | 30 | 40 | 35 | 42 | 39 | 35 | 37 | 39 | 39 | 44 | 44 | 42 | 32 | 41 |
| Waistline (in cm) | 83 | 68 | 71 | 78 | 96 | 92 | 67 | 76 | 84 | 83 | 96 | 98 | 101 | 73 | 77 |
For ALL computations, do not use rounded values in your calculation. Try to use as much information (include as many digits after the decimal point) as you can from previously computed values.
For ALL computations, if the answer is not a whole number, round off to the nearest hundredths.
Compute the sample
1. SPXY =
2. SSX =
3. SSY =
4. r =
Test the significance of the correlation coefficient at the 5% level of significance.
5. Compute the test statistic:
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