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x+3y=11
Why do we reject null hypothesis when the Chi square statistic is less than the tabulated value of chi-square at say 5% level of significance and accept when it is more?
What does it mean to have a Chi-square value more or less than the value assigned to a certain level of significance?
What does it mean to have a Chi-square value more or less than the value assigned to a certain level of significance?
Can you help me define null hypothesis? I have made one and I'm not sure if it includes all the aspects of null hypothesis.
Null hypothesis is a hypothesis which states that there is no difference between the scores of two variables or an observed and a theoretical distribution. It is the statement that is tested in a test of statistical significance.
For e.g. :
I have read from random sources that it can also include the non-association of two variables.(Like the driving speed and gender are not related) But I don't completely understand that to include it in definition.
Null hypothesis is a hypothesis which states that there is no difference between the scores of two variables or an observed and a theoretical distribution. It is the statement that is tested in a test of statistical significance.
For e.g. :
I have read from random sources that it can also include the non-association of two variables.(Like the driving speed and gender are not related) But I don't completely understand that to include it in definition.
Can you help me define null hypothesis? I have made one but I'm not sure if it correctly and completely covers all aspects of this hypothesis:
Null hypothesis is a hypothesis which states that there is no difference between an observed and a theoretical distribution or the scores of two variables.It is the statement that is tested in a test of statistical significance.
Null hypothesis is a hypothesis which states that there is no difference between an observed and a theoretical distribution or the scores of two variables.It is the statement that is tested in a test of statistical significance.
Limit Question ;
Limit(x->infinity) ((1+x^2)^(e^(-x)))
Limit(x->infinity) ((1+x^2)^(e^(-x)))
Solve the differential equation
(1 ) ( ) 0
1 2 tan
+ + − =
−
−
dx
dy
y x e y .
(1 ) ( ) 0
1 2 tan
+ + − =
−
−
dx
dy
y x e y .
a) Find the equation of the sphere which passes through the points
(1, − 4, 3), (1, − 5, 2), (1, − 3, 0) and whose centre lies on the plane x + y + z = 0 .
(1, − 4, 3), (1, − 5, 2), (1, − 3, 0) and whose centre lies on the plane x + y + z = 0 .
if a multiple choice test consit of 5 questions each with 4 possible answers of which only one is correct, (a) how many different ways can a student check off one answer to each question?
(B) how many ways can a student check off one answer to each question and get all the question wrong?
(B) how many ways can a student check off one answer to each question and get all the question wrong?
The mean concentration of cadmium in 6 contaminated soil samples was found to be 0.875 with a standard deviation of 0.134. If it is desired to know the mean with a precision of 2% (RSD), how many additional samples must be taken?
A student obtained the following results for the normality of a Nitric acid solution: 0.424; 0.528; 0.621; 0.433; 0.537. Should 0.621 as a result be rejected statistically?
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#331389 on Nov 2022
#331389 on Nov 2022