Respuesta :
For 95% CI alpha=0.05 hence the critical value with 9 degrees of freedom is t = 2.262
Hence 95%CI=D(bar)±sD/√n
= -0.9±(2.262*4.408/√10)
= -0.9±3.154
Hence lower bound = -0.9-3.154=-4.054
Upper bound = -0.9+3.154 = 2.254
95% CI = (-4.054,2.254)
Due to a variety of environmental and psychological factors, the first blood pressure reading is almost always higher than the second reading. These factors include white coat syndrome stress and a full bladder. After the first measurement waits 1-3 minutes before taking another measurement. If your monitor doesn't track blood pressure readings or heart rate make a note of them. Fluctuations in blood pressure in either direction can be a symptom of another problem called autonomic dysfunction.
Learn more about Systolic blood pressure here:-https://brainly.com/question/14281501
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