Question

Dependent Sample T-Test

Researchers were interested in studying whether the type of food eaten influences appearance perception. Participants were shown 2 pictures of a woman eating either fast food (i.e., a burger with fries) or healthier food (i.e., a salad). The participants were then asked to rate the woman’s level of attractiveness on a scale of 1 (very unattractive) to 7 (very attractive). Given the above information, answer the questions below (assume a level of significance of .05).

1. State the null and alternate hypotheses.
   • Null: The type of food eaten by a woman does not influence appearance perception
   • Alternate: The type of food eaten by a woman will affect one’s appearance perception of them
2. What is the independent variable? Women eating fast/health food
3. What is the dependent variable? Participant’s ratings on appearance perception
4. Complete the table below:

	Fast food	Healthy food
Sample Size	250	250
Sample Mean	2.9880	5.0200
Sample Standard Deviation	1.42688	0.09024
Estimated Standard Error	0.0902	0.0918

Paired Samples Statistics
		Mean	N	Std. Deviation	Std. Error Mean
Pair 1	Fast_food	2.9880	250	1.42688	.09024
	Healthy_food	5.0200	250	1.45743	.09218

Paired Samples Test
		Paired Differences
		Mean	Std. Deviation	Std. Error Mean	95% Confidence Interval of the Difference
					Lower
Pair 1	Fast_food - Healthy_food	-2.03200	1.90933	.12076	-2.26984

Paired Samples Test
		Paired Differences	t	df	Sig. (2-tailed)
		95% Confidence Interval of the Difference
		Upper
Pair 1	Fast_food - Healthy_food	-1.79416	-16.827	249	.000

MY QUESTION IS, ARE MY ANSWERS CORRECT?

Answer 1

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