When performing a T-Test, and p value is greater than the level of significance, what should you do? p value > level of significance

do not reject null hypothesis (accept)

When performing a T-Test, and p value is less than the level of significance, what should you do? p value < level of significance

do not reject null hypothesis (accept)

What is the Chi Square Test of Independence used for?

Testing a hypothesis about the distribution of a categorical variable

Testing a hypothesis about the distribution of a continuous variable

Testing the correlation between two continuous variables

Testing the correlation between two categorical variables

Which of the following is a situation where you can use T-Test Dependent?

Testing whether a new medication has an effect on blood pressure in a group of patients.

Comparing the salaries of three different companies.

Comparing the average temperatures in two different cities.

Comparing the IQ level of two groups of students

Which of the following is a situation where you can use T-Test Independent?

Testing whether there is a difference in the mean scores of two different groups of students on a test

Comparing the weight of a group of people who have been on the same diet

Testing whether a new advertising campaign has an effect on sales in the same store

Comparing the average temperature in a city before and after a natural disaster

Which of the following is a situation where you can use Chi-Square Test of Independence?

Testing whether there is a relationship between gender and voting preference

Testing whether a new medication has an effect on the blood pressure of the same group of patients

Comparing the average height of people in two different age groups

Comparing the average income of people with different levels of education

Which of the following is a situation where you can use ANOVA?

Determining whether there are differences in the average heights of three different tree species in a QCSHS

Assessing whether there are differences in the average salaries of employees in two different departments of a company

Testing whether a new drug has different effects on two groups of patients of different ages

Research 9 Review

Authored by Christine Joy

Other

9th Grade

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A type of statistical test that determines whether or not two population means are different when the variances are known and the sample size is large

Z-Test

T-Test

ANOVA

Chi-square Test of Independence

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the sample size of a Z-Test?

less than 0

30 only

less than 30

30 and above

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the sample size of T-Test?

less than 0

less than 30

only 30

30 and above

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is this symbol called? H₀

Null Hypothesis

Alternative Hypothesis

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is this symbol called? H₁

Null Hypothesis

Alternative Hypothesis

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is always tested to determine the conclusion?

Null Hypothesis

Alternative Hypothesis

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of test are you using with this formula?

T-Test

Chi-square Test of Independence

Z-Test

ANOVA

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Research 9 Review

A type of statistical test that determines whether or not two population means are different when the variances are known and the sample size is large

What is the sample size of a Z-Test?

What is the sample size of T-Test?

What is this symbol called? H₀

What is this symbol called? H₁

What is always tested to determine the conclusion?

What type of test are you using with this formula?

A set of values for the test statistic for which the null hypothesis is rejected

Set or range of values of the test statistic for which the null hypothesis is accepted.

What kind of test is this?

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