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
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.
Apply finger to suction catheter hole & gently rotate the catheter while withdrawing. Each suction should not be any longer than 5-10 seconds. Assess the patient's respiratory rate, skin colour and/or oximetry reading to ensure the patient has not been compromised during the procedure.
a body mass index (BMI) over 30 is a) the sole marker for obesity b) one of the markers for flexibility c) the sole marker for muscle mass d)one of the markers for obesity
This quote means people take advantage of things that are right in front of them instead of cherishing the beauty of the moments that are passing. We use it to our own benefit instead of valuing the real reason of being on this planets
