The Number of Calories in a 12 -Ounce Serving of Randomly-Selected

question 30

Essay

The number of calories in a 12 -ounce serving of randomly-selected regular and lite beers is listed. Is there sufficient evidence to conclude that the mean number of calories for lite beers is significantly less than that for the regular beers? Use $\alpha = 0.10$ . Assume the variables are approximately normally distributed.
$\begin{array} { l c c c c c c c c } \text { Regular: } & 136 & 121 & 128 & 90 & 141 & 149 & 119 & 138 \\ & 132 & 120 & 112 & 172 & 133 & & & \\\\ \text { Lite: } & 100 & 110 & 105 & 103 & 115 & 99 & 123 & 137 \\ & 121 & 156 & & & & & & \end{array}$ a.State the hypotheses.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.

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Definitions:

Social-cognitive Perspective

A psychological approach that emphasizes how we interpret, analyze, and remember information about ourselves and the world around us.

Conditioning

A learning process whereby an organism comes to associate two stimuli, leading to a change in behavior.

Observing

The action of carefully watching someone or something, often for the purpose of collecting data or information.

Reciprocal Determinism

A concept in psychology that posits an individual's behavior is both influenced by and is influential upon their environment and personal factors.