Answer:
B. Paired T Test
B. H0: μd = 0 and Ha: μd < 0 where μd= mean difference in blood pressure (calculated as aspirin - placebo)
Step-by-step explanation:
As the experiment is based on the difference between the results of a pair, the most appropiate test is a paired t-test.
If the 80 people group had been dividided in 2 and then compare the means for each group, it would have been a independent samples t-test.
For each pair, a variable d (for difference) is calculated and used as the outcome sample to perform the test.
Then, the null hypothesis will state that the population mean for this difference is not significantly different from 0, and the alternative hypothesis claiming it is signficant different from 0.
The sample means for the treatment group and the placebo is not individually calculated, as only the difference for each pair is used as sample in a paired t-test.
Answer:
The answer should be 5 logx + 2 log y
Answer:
Step-by-step explanation:
We have been given that the vertices of a triangle are A (5, 0), B (x, y) and C (25, 0). We are asked to find the area of the given triangle.
We will use area formula for triangle with vertices A, B and C as given below:
Upon substituting the given coordinates of points A, B and C in above formula, we will get:
Therefore, the area of the given triangle would be .
Answer:
a) 0
b) scalene and obtuse
Step-by-step explanation:
∠A = 20
∠B = 60
∠C = 180 - 20 - 60 = 100 (obtuse)
Since none of the angles are equal, no sides are equal either
So, it's a scalene triangle
Since one angle is obtuse, it's an obtuse triangle
