What does “significance” in hypthesis testing signify? Consider the statement, “x and y are different but...

What does “significance” in hypthesis testing signify? Consider the statement, “x and y are different but not signicantly different”

Expert Solution

Statistical significance is a concept used to provide justification for accepting or rejecting a given hypothesis.significance is statement of probability.

when we say that significance difference beween x and y ,we are saying that probability that x and y are same is low or very low.most of the time we check significance level at 5% or 1% that means low means less than 5% or less than 1%

this two levels are called significance level and it is denoted by alpha.level of significance chose to evaluate the null hypothesis.if we chose 5% level of significance then we can say that probability of x and y are same is less than 5%.therefore we conclude that they are not same.

when we say that x and y are significantly different ,we are pretty sure they are but we are not certain.we could be wrong.similarly when we say that x and y are not significantly different ,then we are pretty sure they are not different but we are not certain .

orchestra answered 2 years ago

What is the significance of the slope of an angular velocity (y) versus linear velocity (x)...

What is the significance of the slope of an angular velocity (y) versus linear velocity (x) graph?

At the .05 significance level, does the data below show significant correlation? x y 1 19.97...

At the .05 significance level, does the data below show significant correlation? x y 1 19.97 2 18.16 3 27.55 4 15.34 5 25.43 6 26.22 7 12.11 8 11 Yes, significant correlation No

At the .01 significance level, does the data below show significant correlation? x y 5 22.78...

At the .01 significance level, does the data below show significant correlation? x y 5 22.78 6 21.22 7 20.96 8 26.8 9 24.34 10 15.28 11 12.82 12 10.86 13 9.2 Yes, significant correlation No **Please explain why its yes/no

At the .05 significance level, does the data below show significant correlation? x y 5 11.85...

At the .05 significance level, does the data below show significant correlation? x y 5 11.85 6 11.72 7 17.09 8 13.46 9 23.33 10 14.9 11 22.07 Yes, significant correlation No

I. Consider the condition (x == y). How is this handled if x and y are...

I. Consider the condition (x == y). How is this handled if x and y are primitive types? How is this handled if x and y are objects? II. For the program to get a name interactively a Scanner object must be instantiated. Write the Java statement to do this. III. Write a statement using a Scanner method to get the first name interactively. IV. Write a method to extract the initial (first letter) from the first name. V. Write...

Consider a function f(x) which satisfies the following properties: 1. f(x+y)=f(x) * f(y) 2. f(0) does...

Consider a function f(x) which satisfies the following properties: 1. f(x+y)=f(x) * f(y) 2. f(0) does not equal to 0 3. f'(0)=1 Then: a) Show that f(0)=1. (Hint: use the fact that 0+0=0) b) Show that f(x) does not equal to 0 for all x. (Hint: use y= -x with conditions (1) and (2) above.) c) Use the definition of the derivative to show that f'(x)=f(x) for all real numbers x d) let g(x) satisfy properties (1)-(3) above and let...

Consider the following function: f (x , y , z ) = x 2 + y...

Consider the following function: f (x , y , z ) = x 2 + y 2 + z 2 − x y − y z + x + z (a) This function has one critical point. Find it. (b) Compute the Hessian of f , and use it to determine whether the critical point is a local man, local min, or neither? (c) Is the critical point a global max, global min, or neither? Justify your answer.

Question

What does “significance” in hypthesis testing signify? Consider the statement, “x and y are different but...

Solutions

Expert Solution

Related Solutions