I Two Types of Possible Errors Always Exist When Testing

question 135

Multiple Choice

i. Two types of possible errors always exist when testing hypotheses-a Type I error, in which the null hypothesis is rejected when it should not have been rejected, and a Type II error in which the null hypothesis is not rejected when it should have been rejected.
Ii) A test statistic is a value determined from sample information collected to test the null hypothesis.
iii. If we do not reject the null hypothesis based on sample evidence, we have proven beyond doubt that the null hypothesis is true.

• A) (i), (ii) and (iii) are all correct statements
• B) (i) is a correct statement but not (ii) or (iii).
• C) (i) and, (iii) are correct statements but not (ii).
• D) (i) and, (ii) are correct statements but not (iii).
• E) All statements are false

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Definitions:

Personality Development

The formation and development of an individual's personality through experiences, relationships, and environmental influences throughout their life.

Sensorimotor Stage

The first stage in Piaget's theory of cognitive development, involving infants learning through sensory experiences and motor actions.

Concrete Operational Stage

A phase in Jean Piaget's theory of cognitive development, occurring from around 7 to 12 years old, where children gain the ability to think logically about concrete events.

Preoperational Stage

The preoperational stage is a concept in Piaget's theory of cognitive development, describing a stage (roughly ages 2-7) where children begin to use language and think symbolically, but their thinking is still intuitive and egocentric.