Inference in Practice

What are the requirements to making a statistical inference?

• Simple Random Sample

• Known Population Mean

• Normal(ish) Distribution

• Known Population SD

• Convenience Sample

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

CCSS.HSS.IC.B.5

What kind of error is made if we reject a null hypothesis that is actually true?

• Type I Error

• No Error

• Type II Error

What is a hypothesis test?

• A formal statistical test that is used to determine if some hypothesis about a population parameter is true

• A range of values that is likely to contain a population parameter with a certain level of confidence.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.A.2

CCSS.HSS.IC.B.4

If the p-value is higher than the statistical significance level, then the null hypothesis is...

• Rejected

• Failed to be Rejected

• Insignificant

• A False Statement

The effect size doesn't have an effect of statistical significance.

• True

• False

Tags

CCSS.HSS.IC.B.5

The level of statistical significance can directly predict effect size.

• True

• False

Tags

CCSS.HSS.IC.B.5

How does sample size affect the z-value?

• Directly

• Indirectly

Tags

CCSS.HSS.IC.B.4

The higher the z-value, the _____ the p-value.

• Higher

• Lower

Tags

CCSS.HSS.IC.B.5

In the same study, which sample size is most likely to reject the null hypothesis?

• 10

• 25

• 100

• 250

Tags

CCSS.HSS.IC.B.5