An Advertisement for a Popular Weight-Loss Clinic Suggests That Participants

question 31

Multiple Choice

An advertisement for a popular weight-loss clinic suggests that participants in its new diet program lose,on average,more than 10 pounds.A consumer activist decides to test the authenticity of the claim.She follows the progress of 18 women who recently joined the weight-reduction program.She calculates the mean weight loss of these participants as 10.8 pounds with a standard deviation of 2.4 pounds.At the 5% significance level,the critical value would be ______.

• A) 1.960
• B) 1.645
• C) 2.030
• D) 1.740

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Definitions:

Morale

The overall mood, confidence, and level of satisfaction among members of a group or organization.

Hidden Benefits

Advantages or positive outcomes that are not immediately obvious or recognized, often becoming apparent over time or upon closer examination.

Procrastination

The act of delaying or postponing tasks or decisions, often leading to stress, anxiety, or negative outcomes.

Groupthink

A problematic type of thinking that results from group members who are overly willing to agree with one another because of time pressure, stress, and low collective self-esteem.