The role of GABA or gamma-aminobutyric acid is involved in down-regulating the activity of neurons in the human brain and is linked to mental health disorders as: anxiety, depression, autism, schizophrenia, bipolarity, and epilepsy among many others. You sample 50 males without any previous diagnosis of a mental disorder between the ages of 25-31 at a school and report that the average amount of GABA in the sample is 1.16 umol/cm3. Likewise you also report that the standard deviation of the sample is .09 umol/cm3. Construct a 98.64% confidence interval using the sample standard deviation as an estimate for the population standard deviation. Report your upper value as the answer to this question to two decimal places and appropriate rounding.

1 answer

Graph the function
=y−12sec−3xπ
.
To draw the graph, plot three consecutive asymptotes and two points, one on each side of the second asymptote. Then click on the graph icon.

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