Answer:
A. On average the blood pressure levels before the stress reduction program were significantly higher than the systolic blood pressure levels after the stress reduction program, at 95% confidence level
Step-by-step explanation:
The confidence interval parameters is intended to detect if the new stress reduction program will lower the systolic blood pressure levels of employees
The difference between the the mean systolic blood pressure levels taken = The before systolic pressure - The after systolic blood pressure
The 95% confidence interval obtained = (5.6, 10.2)
Therefore, given that the values of the difference between the means are both positive, then there a difference as the confidence interval does not include zero (0), and at the 95% confidence level, the average systolic blood pressure levels before the stress reduction program are higher than the average systolic blood pressure levels after the program
Answer:
the first option
Step-by-step explanation:
okay so the line passes through the 2 on the y-axis making it the y-intercept
that means you can eliminate the second and third options
now to find the slope, you can use rise over run (y2-y1/x2-x1)
3-2/3-0 = 1/3
so the slope is 1/3
all together, the equation would be:
f(x) = 1/3x + 2
so the answer is the first option
20, 21, 29
Explanation:
Use the Pythagorean Theorem
20^2 + 21^2 = 29^2
400 + 441= 841
841 = 841
Answer:
the answer is 3.75
Step-by-step explanation:
because 3/5 equal to 4/x. x=3.75
