SCENARIO 9-9 The President of a University Claimed That the Entering Class

question 4

Short Answer

SCENARIO 9-9
The president of a university claimed that the entering class this year appeared to be larger than the entering class from previous years but their mean SAT score is lower than previous years.He took a sample of 20 of this year's entering students and found that their mean SAT score is 1,501 with a standard deviation of 53.The university's record indicates that the mean SAT score for entering students from previous years is 1,520.He wants to find out if his claim is supported by the evidence at a 5% level of significance.
-Referring to Scenario 9-9,state the null hypothesis for this study.

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Definitions:

Hypnosis

A state of consciousness involving focused attention and reduced peripheral awareness, characterized by an enhanced capacity for response to suggestion.

Hallucinations

Perceptions in the absence of external stimulus that have qualities of real perception; these can be visual, auditory, or sensory in nature.

Dream Coherence

The degree to which a dream makes sense or is logically structured, varying greatly among different dreams and individuals.

Morphine

A potent analgesic derived from opium, used medically to relieve severe pain.