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Understanding t-Tests and Hypothesis Testing

Understanding t-Tests and Hypothesis Testing

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial explains the t-test, a statistical method using the t distribution and t table. It assumes the use of computers for calculation and focuses on interpreting the t statistic to decide whether to reject the null hypothesis. The concept of degrees of freedom, calculated as N minus 2, is highlighted. An example is provided to illustrate testing the relationship between two variables, X and Y, using a non-directional test with a significance level of 0.05.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What statistical tool does the t-test rely on?

F distribution

t distribution

Chi-square distribution

Normal distribution

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the t table in a t-test?

To calculate the standard deviation

To find the critical value

To determine the sample size

To calculate the mean

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is assumed about the calculation of the t statistic?

It is not calculated

It is done using a computer

It is calculated using a calculator

It is done manually

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you be able to interpret from the t statistic output?

The correlation coefficient

The mean of the data

The standard deviation

Whether to reject or fail to reject the null hypothesis

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How are degrees of freedom calculated in this context?

N plus 2

N plus 1

N minus 2

N minus 1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example, how many data points are used for each variable?

Five

Seven

Eleven

Nine

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the independent variable in the example provided?

Y

X

Both X and Y

Neither X nor Y

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