Assume That 20 People Participated in a Speed Reading Class

question 115

Multiple Choice

Assume that 20 people participated in a speed reading class for 6 months. Each person's speed of reading words per minute both before and after the program is determined and recorded. The following summarizes the results for the 20 people: Mean weight lost = 9 pounds Sample standard deviation of weight lost = 4.6 pounds Assume that the hypothesis test will be conducted to determine whether or not the weight loss program is effective using a 0.05 level of significance. What is the value of the test statistic?

• A) t = 18.634
• B) t = 1.96
• C) z = 1.96
• D) z = 6.19

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Definitions:

Manipulative

Involving the skillful handling or controlling of situations or people to achieve one's own goals, often in a manner considered deceitful or unfair.

Vocalics

The nonverbal aspects of the voice, including pitch, rate, and volume.

Gestures

Physical movements or signals used to convey messages or express thoughts without verbal communication.

Nonverbal Messages

Communication expressed through body language, facial expressions, gestures, and other non-linguistic means.