Statistical Tests and Inference Concepts

Statistical Tests and Inference Concepts

Assessment

Interactive Video

Mathematics

10th - 12th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial covers inference for proportions, focusing on Chi-Square tests and Z tests. It explains the Chi-Square test of independence for categorical variables, demonstrating its use in determining significant relationships. The tutorial also explores the two sample Z test for comparing proportions, highlighting its advantages and confidence interval interpretation. Finally, it discusses the one sample Z test, detailing its setup and how to interpret results for hypothesis testing.

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary focus of the program on inference for proportions?

Learning about hypothesis testing

Understanding probability distributions

Exploring linear regression

Reviewing Chi-Square testing and Z tests

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the Chi-Square test of independence help determine?

The correlation between two continuous variables

The relationship between two categorical variables

The variance of a dataset

The mean of a dataset

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a Chi-Square test, what does a low P-value indicate?

A need for more data

A high level of error

A significant relationship between variables

No relationship between variables

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one advantage of the two-sample Z test over the Chi-Square test?

It can handle more variables

It allows for one-tailed testing

It requires less data

It is easier to calculate

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the two-sample Z test compare?

Means of two samples

Proportions of two samples

Variances of two samples

Medians of two samples

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the two-sample Z test, what does a confidence interval that includes zero indicate?

No significant difference

A calculation error

A need for more data

A significant difference

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a one-sample Z test?

To calculate the variance

To estimate a population proportion

To find the median of a dataset

To compare two sample means

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