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Dependent Sample T-Test Researchers were interested in studying whether the type of food eaten influences appearance...

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?

math   Statistics-And-Probability   
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Answer #1

Solution yotheep: Ho The mian hiterence is sgud to eso Hi: 2e30. The mean difference y8 nat EguaW toteso 叫am 20de 3) In these14) Fot FoodHeatthy Food Sample Si2e Saumple Meay) Sample stondard 2S O S.0200 1.42638 S7143 Deviaiovl 50181

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