One of the Major U

question 223

Multiple Choice

One of the major U.S. tire makers wishes to review its warranty for their rainmaker tire. The warranty is for 40,000 miles. The tire company believes that the tire actually lasts more than 40,000 miles. A
Sample 49 tires revealed that the mean number of miles is 45,000 miles with a standard deviation of 15,000 miles. Test the hypothesis with a 0.05 significance level.

• A) The decision rule is to reject if Z > 1.645. The calculated value of z is +2.33.
• B) The decision rule is to reject if Z < 1.645. The calculated value of z is -2.33.
• C) The decision rule is to reject if Z > 1.96. The calculated value of z is +2.33.
• D) The decision rule is to reject if Z < 1.96. The calculated value of z is +2.33.
• E) None of these statements is correct.

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Definitions:

Autonomy Versus Shame

A stage in Erik Erikson's theory of psychosocial development where toddlers learn to exercise will and do things for themselves, or they doubt their abilities.

Mirror Neurons

are neurons that fire both when an individual performs an action and when they observe someone else performing that same action, thought to be crucial for learning through imitation.

Endogenous Smile

A smile that originates internally, often reflecting genuine happiness or contentment, not prompted by external stimuli.

Social Stimuli

External cues or actions from others that can influence an individual's behavior or emotional state.