Consider a hypothesis where ${\mathrm{H}}_0:\mathrm{\mu }=15$ and ${\mathrm{H}}_1:\mathrm{\mu }>15$ then the test is called ___________ .

A statement made about a population for testing purpose is called _________ .

Any hypothesis which is tested for the purpose of rejection under the assumption that it is true is __________ .

The dividing point between the region where the null hypothesis is rejected and the region where it is not rejected is said to be _____________ .

When ${\mathrm{H}}_0$ is true but we may reject it, then which type of error occurs ?

If the null hypothesis is false then which hypothesis is accepted ?

Level of significance of 4% is same as ________ of confidence interval.

Assume the cholesterol level in certain people have mean $\mathrm{\mu }=200$ and standard deviation $\mathrm{\sigma }=24$ . The cholesterol level for a random sample of $\mathrm{n}=9$ individuals are measured and the sample mean $\overline{\mathrm{x}}$ is determined. What is the Z-score for the sample mean $\overline{\mathrm{x}}=180$ ?

Consider a random sample of 200 females and 200 males. Suppose 30 of the females are left handed and 24 of the males are left handed. What is the estimated difference between the population proportions of females and males who are left handed (females-males) ?

The result is called statistically significant whenever ____________ .