Question

Experimental Group

Control Group

Explain the T-Test result in each of these tables?

Paired Samples Test Paired Differences 95% Confidence Interval of the Difference Std. Error Mean Mean Std. Deviation Lower Upper df Sig. (2-tailed) Pair 1 Fast-food in a weelk Pair 2 Size meal Size meal Pair 3 Snack on chips Snack 1.02956 245 35000 5568 2.25853 583 1.633 2.429 1.976 60000 2.30217 3.45853 591 FastFoodlnAWeekPOST 548 1.080 178 072 119 400 .280 Post 85000 78262 .12176 1.82176 on Chips Post 1.1000 .4459 2.26587 Pair 4 Candy- Candy Post Drinks with no added sugar - No Added Sugar Post 1.2450 2.6459 60000 1.000 Pair5 1.06587 374 -.60000 1.34164 Drinks with added sugar Added Sugar Post 1.319 Pair 6 92000 1.55949 69742 1.01636 2.85636 258 Paired Samples Test Paired Differences 95% Confidence Interval of the Difference Std. Erro Mean Lower Upper Mean Std. Deviation df Sig. (2-tailed) 1.12176 690 374 040 Fast-food in a week - FastFoodlnAWeekPOST 15000 78262 35000 82176 Pair 1 429 1.342 600 2.266 1.000 Pair 2 Size meal - Size meal Post 1.066 1.41171 2.8157 600 24481 Snack on chips - Snack on Chips Post Pair 3 54742 05229 -2.990 .73200 1.4000 06400 5099 052 952 Pair 4 Candy- Candy Post Drinks with no added sugar- No Added Sugar Post 1.1402 0157 -2.746 2.82728 99526 Pair 5 2.22546 2.69928 064 Drinks with added sugar- Added Sugar Post 2.00167 -2.14940 Pair 6 .33600 89517 2.82140 375 4 726

Answer 1

Answer:

Experimental group:

Let significance level= 0.05.

Pre post comparison of Fast food in a week, calculated t= 0.583, Df=4, P=0.591. The difference is not significant.

Pre post comparison of size meal, calculated t= 1.633, Df=4, P=0.178. The difference is not significant.

Pre post comparison of Snack on chips, calculated t= 2.429, Df=4, P=0.072. The difference is not significant.

Pre post comparison of Candy, calculated t= 1.976, Df=4, P=0.119. The difference is not significant.

Pre post comparison of Drinks with no added sugar, calculated t= -1.00, Df=4, P=0.374. The difference is not significant.

Pre post comparison of Drinks with added sugar, calculated t= 1.319, Df=4, P=0.258. The difference is not significant.

control group:

Pre post comparison of Fast food in a week, calculated t= -0.429, Df=4, P=0.690. The difference is not significant.

Pre post comparison of size meal, calculated t= 1.00, Df=4, P=0.374. The difference is not significant.

Pre post comparison of Snack on chips, calculated t= -2.99, Df=4, P=0.040. The difference is significant.

Pre post comparison of Candy, calculated t= -2.746, Df=4, P=0.052. The difference is not significant.

Pre post comparison of Drinks with no added sugar, calculated t= -0.064, Df=4, P=0.952. The difference is not significant.

Pre post comparison of Drinks with added sugar, calculated t= 0.375, Df=4, P=0.726. The difference is not significant.