Can you please show us the model?
Perimeter of the new triangle is 1505 ft
Step-by-step explanation:
- Step 1: Given the perimeter of the right triangle = 215 ft. Find new perimeter.
Perimeter of the triangle = sum of the sides = a + b + c = 215
Each side is multiplied by 7, so new sides are 7a, 7b, 7c
⇒ New perimeter = 7a + 7b + 7c = 7(a + b + c) = 7 × 215 = 1505 ft
The numbers on the left are the x values because the arrows are pointing away from them. The numbers in the right are the y values. Match the y value with the x value that the arrows are pointing from.
-2,-5 , -2,7 , 1,0 , 5,4 , 7, 0
The answer is C.
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.
