Step-by-step explanation:
115 = 5x + 15
115 - 15 = 5x
100 = 5x
20 = x
Answer:
it's A
Step-by-step explanation:
The parallelogram is a rhombus
Answer:
Option B)
![H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}](https://tex.z-dn.net/?f=H_%7B0%7D%3A%20%5Cmu%20%3D%20140%5Ctext%7B%20mm%7D%5C%5CH_A%3A%20%5Cmu%20%3C%20140%5Ctext%7B%20mm%7D)
Step-by-step explanation:
We are given the following in the question:
Hypothesis:
The doctors and u=instructor claims that practicing yoga reduces blood pressure and hence is beneficial to people.
Population mean, μ = 140 mm
Sample mean,
= 139 mm
Sample size, n = 51
Sample standard deviation, s = 5 mm
Thus, we can design the null hypothesis and alternate hypothesis as
![H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}](https://tex.z-dn.net/?f=H_%7B0%7D%3A%20%5Cmu%20%3D%20140%5Ctext%7B%20mm%7D%5C%5CH_A%3A%20%5Cmu%20%3C%20140%5Ctext%7B%20mm%7D)
The null hypothesis states that the population have a blood pressure of 140 mm. The alternate hypothesis states that yoga reduces the blood pressure and the sample has a blood pressure less than 140 mm.
Thus, the correct answer is
Option B)
![H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}](https://tex.z-dn.net/?f=H_%7B0%7D%3A%20%5Cmu%20%3D%20140%5Ctext%7B%20mm%7D%5C%5CH_A%3A%20%5Cmu%20%3C%20140%5Ctext%7B%20mm%7D)