Answer:
-4
Step-by-step explanation:
Assuming that the following equation is correct, begin by solving the operations within parentheses and absolute value expressions.
|3 - 8| -
|-5| -
The absolute value of -5 is 5; -5 is five units away from 0. 12/4 is equal to 3.
5 -
5 - 9 = -4
The simplified expression is equal to -4.
Answer:
Option B)
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
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)
