If there is one prayer that you should pray/sing every day and every hour, it is the
LORD's prayer (Our FATHER in Heaven prayer)
- Samuel Dominic Chukwuemeka
It is the most powerful prayer.
A pure heart, a clean mind, and a clear conscience is necessary for it.
For in GOD we live, and move, and have our being.
- Acts 17:28
The Joy of a Teacher is the Success of his Students.
- Samuel Chukwuemeka
I greet you this day:
First: Read the notes.
Second: View the videos.
Third: Solve the questions/solved examples.
Fourth: Check your solutions with my thoroughly-explained solutions.
Fifth: Check your solutions with the calculators as applicable.
If you are doing multiple calculations, you may need to refresh your browser after each calculation, in order to clear
all previous results.
These are what I have at the moment. I intend to add more functionalities as time demands.
Comments, ideas, areas of improvement, questions, and constructive criticisms are welcome. You may contact me.
If you are my student, please do not contact me here. Contact me via the school's system. Thank you.
Samuel Dominic Chukwuemeka (Samdom For Peace) B.Eng., A.A.T, M.Ed., M.S
Given: CL
To Find: α, -zα/2
Given: α
To Find: CL, -zα/2
Given: p, p̂, α
Test hypothesis using Classical Approach and P-value Approach
Given: p, n, x, α
Test hypothesis using Classical Approach and P-value Approach
Given: p, n, x of a Binomial Distribution; α
Test hypothesis using P-value Approach
Given: CL
To Find: α, zα
Given: α
To Find: CL, zα
Given: p, p̂, α
Test hypothesis using Classical Approach and P-value Approach
Given: p, n, x, α
Test hypothesis using Classical Approach and P-value Approach
Given: p, n, x of a Binomial Distribution; α
Test hypothesis using P-value Approach
Given: σ, x, n, p
Test hypothesis using the Classical Approach and the P-value Approach
Given:p, p̂, α
Test hypothesis using Classical Approach and P-value Approach
Given: CL, x, n, p
Test hypothesis using the Confidence Interval Method
Given: p, n, x of a Binomial Distribution; α
Test hypothesis using P-value Approach
Given: x1, n1, x2, n2, α
Test hypothesis using Classical Approach and P-value Approach
Given: x1, n1, x2, n2, α
Test hypothesis using Classical Approach and P-value Approach
Given: σ, x, n, p
Test hypothesis using Classical Approach and P-value Approach
Given: x1, n1, x2, n2, α
To: Construct a confidence interval for p1 - p2
Given: CL, df
To Find: α, critical t
Given: α df
To Find: CL, critical t
Given: CL, n
To Find: α, critical t
Given: α, n
To Find: CL, critical t
Given: Raw dataset $X$ (from Sample)
To calculate: sample size, mean, standard deviation
Given: sample size, test statistic
To Calculate: degrees of freedom, P-value
Given: μx̄, x̄, s, n, α
Test hypothesis using Classical Approach and P-value Approach
Given: μx̄, x̄, σ, n, α
Test hypothesis using Classical Approach and P-value Approach
Given: CL, df
To Find: α, critical t
Given: α df
To Find: CL, critical t
Given: CL, n
To Find: α, critical t
Given: α, n
To Find: CL, critical t
Given: Raw dataset $X$ (from Sample)
To calculate: sample size, mean, standard deviation
Given: sample size, test statistic
To Calculate: degrees of freedom, P-value
Given: μx̄, x̄, s, n, α
Test hypothesis using Classical Approach and P-value Approach
Given: μx̄, x̄, σ, n, α
Test hypothesis using Classical Approach and P-value Approach
Given: CL, df
To Find: α, critical t
Given: α df
To Find: CL, critical t
Given: CL, n
To Find: α, critical t
Given: α, n
To Find: CL, critical t
Given: Raw dataset $X$ (from Sample)
To calculate: sample size, mean, standard deviation
Given: sample size, test statistic
To Calculate: degrees of freedom, P-value
Given: μx̄, x̄, s, n, α
Test hypothesis using Classical Approach and P-value Approach
Given: μx̄, x̄, s, n, CL
Test Hypothesis using the Confidence Interval Method
Given: μx̄, x̄, σ, n, α
Test hypothesis using Classical Approach and P-value Approach
Given: Raw datasets $X_1$ and $X_2$ (Samples)
To Calculate: sample sizes, sample means, sample standard deviations, degrees of freedom
(several ones: use whatever is applicable)
Use for Independent Samples
Given: Raw datasets $X_1$ and $X_2$ (Samples)
To Calculate: differences between values; sample size, sample mean, and sample standard
deviation of the difference, degrees of freedom
Use for Dependent Samples
Given: x̄1, x̄2, s1, s2, n1,
n2, α
Where: σ1 and σ2 are unknown, and are assumed to be equal
Pooled Sample Variance is used
Test hypothesis using Classical Approach and P-value Approach
Given: x̄1, x̄2, s1, s2, n1,
n2, CL
Where: σ1 and σ2 are unknown, and are not assumed to be equal
Pooled Sample Variance is used
Construct a confidence interval for μ1 - μ2
Given: Raw datasets $X_1$ and $X_2$ (Samples)
To Calculate: sample sizes, sample means, sample standard deviations, degrees of freedom
(several ones: use whatever is applicable)
Use for Independent Samples
Given: Raw datasets $X_1$ and $X_2$ (Samples)
To Calculate: differences between values; sample size, sample mean, and sample standard
deviation of the difference, degrees of freedom
Use for Dependent Samples
Given: x̄1, x̄2, s1, s2, n1,
n2, α
Where: σ1 and σ2 are unknown, and are assumed to be equal
Pooled Sample Variance is used
Test hypothesis using Classical Approach and P-value Approach
Given: x̄1, x̄2, s1, s2, n1,
n2, CL
Where: σ1 and σ2 are unknown, and are not assumed to be equal
Pooled Sample Variance is used
Construct a confidence interval for μ1 - μ2
Given: Raw datasets $X_1$ and $X_2$ (Samples)
To Calculate: sample sizes, sample means, sample standard deviations, degrees of freedom
(several ones: use whatever is applicable)
Given: x̄1, x̄2, s1, s2, n1,
n2, α
Where: σ1 and σ2 are unknown, and are assumed to be equal
Pooled Sample Variance is used
Test hypothesis using Classical Approach and P-value Approach
Given: x̄1, x̄2, s1, s2, n1,
n2, CL
Where: σ1 and σ2 are unknown, and are not assumed to be equal
Pooled Sample Variance is used
Construct a confidence interval for μ1 - μ2
Given: x̄1, x̄2, s1, s2, n1,
n2, α
Where: σ1 and σ2 are unknown, and are not assumed to be equal
Test hypothesis using Classical Approach and P-value Approach
Given: n, s, σ, α
Test hypothesis using Classical Approach and P-value Approach
Given: Raw dataset $X$ (from Sample)
To Calculate: sample size, sample standard deviation
Given: n, s, σ, α
Test hypothesis using Classical Approach and P-value Approach
Given: Raw dataset $X$ (from Sample)
To Calculate: sample size, sample standard deviation
Given: n, s, σ, α
Test hypothesis using Classical Approach and P-value Approach
Given: n, s, σ, CL
Test Hypothesis using the Confidence Interval Method
Given: Raw dataset $X$ (from Sample)
To Calculate: sample size, sample standard deviation
Given: CL, df
To Find: α, critical Chi-Square
Given: α, df
To Find: CL, critical Chi-Square
Given: OV, EV
To Calculate: df, Χ2 (Show all steps), P-value
Given: $OV$, Probabilities, Total Number of Trials
OR
Given: Benford's Law
To Calculate $EV$, $df$, $\chi^2$ (Show all steps), P-value
Given: $OV$, $EV$, α (Use 5% if not specified)
Test Hypothesis Using Classical Approach and P-value Approach
Given: $OV$, Probabilities, Total Number of Trials, α (Use 5% if not specified)
OR
Given: Benford's Law, α (Use 5% if not specified)
Test Hypothesis Using Classical Approach and P-value Approach
Given: Contingency Table
Test for Independence using the Critical Value Method and the P-value Method
Given: Datasets 1, 2, and 3
Calculate the F test statistic (Show all work)
Given: Datasets 1, 2, and 3
Test Hypothesis Using Classical Approach and P-value Approach
Given: datasets X and Y
Test hypothesis using the Critical Value Method and the P-value Method
Given: datasets X and Y
Test hypothesis using the Critical Value Method and the P-value Method
Given: datasets X and Y
Test hypothesis using the Critical Value Method and the P-value Method