**Statistical Decision: -**Very often is practice; we are called upon to make decisions about population on the basic of sample information; such decisions are called

**Statistical Decision.**

**Statistical Hypothesis: -** Such assumptions about the population may or may not be true are called **Statistical Hypothesis.**

**Null Hypothesis: -** If we want to decide whether one assumption or procedure is letter than another. **Null Hypothesis** is the positive rejection of **Hypothesis.** It is defined as **Ho**.

**Alternative Hypothesis: -** The **Alternative Hypothesis** is the logical **opposite** to the **Null Hypothesis.** It is defined as **Ha**.

**One Tail Test: -** A test of any **Statistical Hypothesis** where the alternative is one sided such as

Ho : μ = μ_{o} or Ho : μ = μ_{o}

Ha : μ > μ_{o} or Ha : μ < μ_{o}

**Is called one Sided Test.**

**Two Tailed Test:** A test of any **Statistical Hypothesis** where the alternative is two sided such as

Ho : μ = μ_{o}

Ha : μ ≠ μ_{o}

**Is called Two Sided Test.**

A test of the mean of a normal distribution against **two sided alternative**:

A test of the mean of a normal distribution against **right sided alternative**:

I really like your blog. You have a sense of humor and very informative article. Thank you for sharing. Keep up the good work.

ReplyDeleteCara

www.gofastek.com

It is great to have the opportunity to read a good quality article with useful information on topics that plenty are interested on.

ReplyDeletewww.imarksweb.org