Assume that random variable x^2 has a chi-squared distribution
with v degree of freedom. Find the value of “A” for the following
cases
1) P(X^2 <=A) =.95 when v = 6
2) P(X^2>=A) =.01 when v = 21
3) P(A <= X^2 <= 23.21)= .015 when v = 10.
Determine the critical value of chi squared x2 with 1
degree of freedom for α=0.05
The critical value of chi squaredχ2 is?
(Round to three decimal places as needed.)
Show that X/Y follows the distribution of t(1) (i.e. t
distribution with 1 degree of freedom), where X and Y are
independent random variables from standard normal distribution.
Hint: t distribution with 1 degree of freedom is also classed as
the Cauchy distribution, and it is well-known that the mean of this
distribution does not exist.
For a Chi-Squared Goodness of Fit Test about a uniform
distribution, complete the table and find the test statistic.
Round to the fourth as needed.
Categories
Observed
Frequency
Expected
Frequency
1
23
2
39
3
50
4
32
5
15
6
31
Test Statistic:
1. T distribution with n degree of freedom is T=z/squart root
(x/n) does that mean n-1 degree of freedom will be
T=z/squart root (x/n-1) ?
2. what is the degrees of freedom. ????? please give me some
examples
follow the comments please.
Which Hypotheses Tests use a Chi-squared distribution?
Which Hypothesis Tests use an F distribution?
What is the rule for sample size calculations?
What is the rule regarding the appropriate signs to be used in
the null and alternative hypotheses?
Which Hypotheses Tests use a Chi-squared distribution?
Which Hypothesis Tests use an F distribution?
What is the rule for sample size calculations?
What is the rule regarding the appropriate signs to be used in
the null and alternative hypotheses?