According to a recent warning from the FDA, grain-free food might be giving dogs a life-threatening heart problem called dilated cardiomyopathy, or DCM. Scientists interested in studying this link were trying to see if there was a difference in the average blood pressure of dogs on grain-free dog food vs the average blood pressure of dogs on food that includes grains. To minimize variation in subjects, scientists measured the initial blood pressure of 30 dogs while each was still on a grain-free diet, and then took a second measurement 8 weeks after each dog was switched to a diet that included grains. What hypothesis test would be appropriate for analyzing the above scenario

Answer:

paired t-test

Explanation:

The paired t-test is used for samples or variables that belong to the same individual or entity under study. Recall that; if the experiment is to be carried out with each experiment unit being measured twice, then giving an outcome of pairs of observations; Hence, we apply the paired t-test.

Charlie, a pharmacy technician, is in charge of the inventory, including ordering the drugs required by the pharmacy, stocking the shelves, and logging all the new drugs. He needs to order several drugs he had never heard of and does not know which conditions to place them in. He also found that a couple of drugs were classified as radioactive.

Blood vessels (capillaries) that selectively let certain substances enter brain tissue and keep others out.

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Type of glial (neuroglial) cell that transports water and salts from capillaries.

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Collection of spinal nerves below the end of the spinal cord.

A.
Neurotransmitter chemical released at the ends of nerve cells.

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Microscopic fiber that carries the nervous impulse along a nerve cell.

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Carries messages toward the brain and spinal cord from receptors.

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Lower portion of the brain that connects the cerebrum with the spinal cord.

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Part of a nerve cell that contains the nucleus.

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Middle layer of the meninges.

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Contains nerves that control involuntary body functions or muscles, glands, and internal organs.
A. Acetylcholine
B. afferent nerve
C. arachnoid membrane
D. astrocyte
E. autonomic nervous system
F. axon
G. blood-brain barrier
H. brainstem
I. cauda equina
J. cell body

A 31 y.o. African-American female collapses at mile 20 of a marathon. Although the temperature is in the 60’s she was advised by her coach to drink as much water as possible. She vomits a large volume of clear fluid and has a seizure. Her BP is 134/74. A serum sodium is found to be 122 mmol/L. What would your next step would be?