Answer:
Kindly check explanation
Step-by-step explanation:
Given that :
Sample size, n = 39
Correlation Coefficient, r = 0.273
The hypothesis test to examine if there is a positive correlation :
H0 : ρ = 0
If there is a positive correlation, then ρ greater than 1
H0 : ρ > 1
The test statistic :
T = r / √(1 - r²)/(n - 2)
T = 0.273 / √(1 - 0.273²)/(39 - 2)
T = 0.273 / 0.1581541
T = 1.726
The Pvalue using a Pvalue calculator can be be obtained using df = n - 2, df = 39 - 2 = 37
The Pvalue = 0.0463
α= .10 and α= .05
At α= .10
Pvalue < α ; Hence, we reject H0 and conclude that a positive correlation exists
At α= 0.05 ;
Pvalue < α ; Hence, we reject H0 and conclude that a positive correlation exists
BC is 8.7
CA is 20
hope this helps
Answer:
<-3,4>
<0,-5>
Step-by-step explanation:
|-3w| = 15
3|-w| = 3|w| = 15
|w| = 
|w| = 5
- If vector w is represented by <1,-9>
Then |w| = 
.
Therefore this is not possible.
- If vector w is represented by <-3,4>
Then |w| = 
.
Therefore this is possible.
- If vector w is represented by <4,5>
Then |w| = 
.
Therefore this is not possible.
- If vector w is represented by <-5,-3>
Then |w| = 
.
Therefore this is not possible.
- If vector w is represented by <0,-5>
Then |w| = 
.
Therefore this is possible.
(NOTE : if z vector is represented by <x,y> then |z| = 
)
Answer:
Can you show me the fourth choice? I will be able to answer once you post it. If this is a four choice problem, then it is the choice that I can not see.
Step-by-step explanation:
Answer:
13.5
Step-by-step explanation:
7 1/2=7.5
7.5/5*9=13.5
