A Statistics Teacher Started Class One Day by Drawing the Names

question 45

Multiple Choice

A statistics teacher started class one day by drawing the names of 10 students out of a hat and asked them to do as many pushups as they could. The 10 randomly selected students averaged 15 pushups per person with a standard deviation of 9 pushups.Suppose the distribution of the population of number of pushups that can be done is approximately normal. If we would like to capture the population mean with 95% confidence the margin of error would be ??

• A) \(1.960 \left( \frac { 9 } { \sqrt { 10 } } \right)\)
• B)? \(2.125 \left( \frac { 15 } { \sqrt { 10 } } \right)\)
• C)? \(2.262 \left( \frac { 9 } { \sqrt { 10 } } \right)\)
• D)? \(3.250 \left( \frac { 15 } { \sqrt { 10 } } \right)\)

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Definitions:

Coregulation

A process where individuals regulate each other's emotions or behaviors through interaction, especially common in close relationships.

Autonomy

The ability or principle of being self-governing or independent; in developmental psychology, it refers to the development of personal independence.

Authoritarian

A leadership or governance style characterized by strict obedience to authority and often a lack of personal freedom.

Physical Punishment

The use of physical force with the intention of causing a child to experience pain, but not injury, for the purpose of correction or control of the child's behavior.