Download Student`s t-Test: Results

Student's t-Test: Results
Rating of Hunger Prior to 2nd meal
Group A = M1 = Crushed Foods
Group B = M1 is Chunk Foods
The results of an unpaired t-test performed at 09:27 on 20-JUL-2005
t=-0.185
sdev= 22.9
degrees of freedom = 14 The probability of this result, assuming the null
hypothesis, is 0.86
Group A: Number of items= 8
1.00 2.00 10.0 16.0 42.0 50.0 56.0 60.0
Mean = 29.6
95% confidence interval for Mean: 12.25 thru 47.00
Standard Deviation = 24.9
Hi = 60.0 Low = 1.00
Median = 29.0
Average Absolute Deviation from Median = 22.4
Group B: Number of items= 8
8.00 10.0 17.0 23.0 35.0 42.0 56.0 63.0
Mean = 31.8
95% confidence interval for Mean: 14.37 thru 49.13
Standard Deviation = 20.7
Hi = 63.0 Low = 8.00
Median = 29.0
Average Absolute Deviation from Median = 17.3
Total Food Intake of Meal 2
Group A = M1 = Crushed Foods
Group B = M1 is Chunk Foods Including subject 4
Student's t-Test: Results
The results of an unpaired t-test performed at 09:32 on 20-JUL-2005
t= -2.53
sdev= 116.
degrees of freedom = 14 The probability of this result, assuming the null
hypothesis, is 0.024
Group A: Number of items= 8
29.0 30.0 30.0 41.0 84.0 121. 298. 298.
Mean = 116.
95% confidence interval for Mean: 28.51 thru 204.2
Standard Deviation = 117.
Hi = 298. Low = 29.0
Median = 62.5
Average Absolute Deviation from Median = 83.9
Group B: Number of items= 8
176. 178. 202. 210. 230. 272. 314. 523.
Mean = 263.
95% confidence interval for Mean: 175.3 thru 351.0
Standard Deviation = 115.
Hi = 523. Low = 176.
Median = 220.
Average Absolute Deviation from Median = 71.6
Total Food Intake of Meal 2
Group A = M1 = Crushed Foods
Group B = M1 is Chunk Foods EXCLUDING subject 4 data
Student's t-Test: Results
The results of an unpaired t-test performed at 09:34 on 20-JUL-2005
t= -2.29
sdev= 92.3
degrees of freedom = 13 The probability of this result, assuming the null
hypothesis, is 0.039
Group A: Number of items= 8
29.0 30.0 30.0 41.0 84.0 121. 298. 298.
Mean = 116.
95% confidence interval for Mean: 45.86 thru 186.9
Standard Deviation = 117.
Hi = 298. Low = 29.0
Median = 62.5
Average Absolute Deviation from Median = 83.9
Group B: Number of items= 7
176. 178. 202. 210. 230. 272. 314.
Mean = 226.
95% confidence interval for Mean: 150.6 thru 301.4
Standard Deviation = 50.8
Hi = 314. Low = 176.
Median = 210.
Average Absolute Deviation from Median = 37.1
Ratings of Appeal of Meal 2
Group A = M1 = Crushed Foods
Group B = M1 is Chunk Foods
Student's t-Test: Results
The results of an unpaired t-test performed at 09:37 on 20-JUL-2005
t= -3.50
sdev= 18.9
degrees of freedom = 14 The probability of this result, assuming the null
hypothesis, is 0.0035
Group A: Number of items= 8
0.000E+00 0.000E+00 0.000E+00 7.00 8.00 21.0 25.0 45.0
Mean = 13.3
95% confidence interval for Mean: -1.108 thru 27.61
Standard Deviation = 16.0
Hi = 45.0 Low = 0.000E+00
Median = 7.50
Average Absolute Deviation from Median = 11.5
Group B: Number of items= 8
18.0 25.0 37.0 40.0 40.0 67.0 67.0 77.0
Mean = 46.4
95% confidence interval for Mean: 32.02 thru 60.73
Standard Deviation = 21.4
Hi = 77.0 Low = 18.0
Median = 40.0
Average Absolute Deviation from Median = 16.4
Meal 2 Pineapple intake
Student's t-Test: Results
Group A = Crushed pineapple M2
Group B = Chunk pineapple M2
The results of an unpaired t-test performed at 10:24 on 20-JUL-2005
t= 1.77
sdev= 78.4
degrees of freedom = 14 The probability of this result, assuming the null
hypothesis, is 0.099
Group A: Number of items= 8
5.00 33.0 198. 203. 212. 213. 239. 244.
Mean = 168.
95% confidence interval for Mean: 108.9 thru 227.8
Standard Deviation = 93.9
Hi = 244. Low = 5.00
Median = 208.
Average Absolute Deviation from Median = 58.6
Group B: Number of items= 8
24.0 71.0 75.0 82.0 86.0 90.0 145. 220.
Mean = 99.1
95% confidence interval for Mean: 39.70 thru 158.6
Standard Deviation = 58.9
Hi = 220. Low = 24.0
Median = 84.0
Average Absolute Deviation from Median = 36.1
Questions of Interest/Hypotheses
Subjects consumed less (total food intake) when the texture of the second meal was the
same as the first meal.
For a given food item, subjects consumed more in the second meal if the food was
presented in a different texture.
crushed pineapple………… pineapple chunks
shredded cheese ………….. cheese chunks
peanut butter……………….peanuts
crackers ……………………crackers