Answer: i dont know but its B or D
Step-by-step explanation:
Answer:
Step-by-step explanation:
Hello!
You need to test the hypothesis that the slope of the regression is cero.
I've run in the statistic software the given data for Y and X and estimated the regression line:
Yi= 7.82 -1.60Xi
Where
a= 7.82
b=-1.60
Sb= 3.38
The hypothesis is:
H₀: β = 0
H₁: β ≠ 0
α: 0.05
This is a two-tailed test, the null hypothesis states that the slope of the regression is cero, this means that if the null hypothesis is true, there is no linear regression between Y and X.
The statistic for this test is a Student-t
t= <u> b - β </u> ~t
Sb
The critical values are:
Left:
Right:
t= <u>-1.60 - 0 </u>= -0.47
3.38
the p-value is also two-tailed, you can calculate it by hand:
P(t ≤ -0.47) + (1 - P(t ≤ 0.47) = 0.3423 + (1 - 0.6603) =0.6820
With the level of significance of 5%, the decision is to not reject the null hypothesis. This means that the slope of the regression is equal to cero, i.e. there is no linear regression between the two variables.
I hope this helps!
Answer:
p(5) = 30
Step-by-step explanation:
p(t) and if t=5 then p(5)
p(5) = 3(2)(5)
p(5) = 6(5)
p(5) = 30
Hope this helps and I hope u have an Amazing day!!
Answer:
The red curve is the graph for given function.
Step-by-step explanation:
We are given the following function in the question:
We have to graph this function.
Properties of function:
- The given function is an exponential function of the form , where b is the base and x can be any real number.
- Here,
- It passes through the point (0,1).
- Since , the graph of function will decrease as we move from left to right.
- The domain for given function is all real numbers.
- The range for the given function is
The attached image shows the graph for the given function.