For the Next Questions, Assume That a Simple Random Sample

question 5

Essay

For the next questions, assume that a simple random sample has been taken,
the population standard deviation is not known, and the population is normally
distributed. Medical researchers studying cochlear implants, devices placed behind
the bone in the ear to improve hearing, found the following number of implants
over the last twelve years in children under 3 years old. Use a 90% confidence level
and the following sample data:
-Find the critical value .

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Definitions:

Emotional Intelligence

The ability to understand, manage, and communicate one's feelings, as well as to approach personal relationships carefully and with empathy.

Act Motivated

The approach of initiating actions and behaviors as if one is already motivated, in hope of sparking genuine motivation.

Building Confidence

The process of gaining self-assurance in one's abilities through positive experiences and accomplishments.

Competent

Having the necessary ability, knowledge, or skill to do something successfully.