A Sample of 250 Adults Tried the New Multigrain Cereal

question 89

Multiple Choice

A sample of 250 adults tried the new multigrain cereal Wow! A total of 187 rated it as excellent. In a sample of 100 children,66 rated it as excellent. Using the 0.1 significance level,the researcher wishes to show that adults like the cereal better than children. What test statistic should we use to compare the ratings of adults and children?

• A)A z-statistic
• B)A right one-tailed test statistic
• C)A left one-tailed test statistic
• D)A t-statistic

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Definitions:

Intrinsic Rewards

Personal satisfaction and enjoyment derived from engaging in an activity, not contingent upon external rewards or recognition.

Extrinsic Rewards

Rewards given by external factors, such as money or praise, which motivate behavior not inherently rewarding.

Brain Stimulation

Techniques for applying electrical or magnetic fields to the brain to influence neurological function.

Olds and Milner

Psychologists known for discovering the brain's pleasure center by conducting experiments involving electrical brain stimulation in rats.