Statistics Basic 002

The goal of ____________ is to form a conclusion about a population parameter from sample statistics taken from the population

• Descriptive stat

• Inferential Stat

• Sampliing distribution

Which of the following is symbol of variance of a sample

Assumption of homogeneity of variance can be expressed as

Point Estimation is...

• when we calculate a range of

  values within which it appears reasonable that the parameter lies

• when we desire a single value which appears reasonable for the parameter

• when we desire a single value as an estimate of the population value

this is formula for...

• Total sum of squares

• Sum of squares within the group

• Sum of squares Between the group

Median formula for set of even number distribution is

• Median = ( (n/2)^th observation+(n/2 +1)^th observation ) / 2

• Median = (n+1)/2

• Median = n/2

• Middle value of the class interval

Series of statistical data with only variable is called

• Discrete series

• Individual series

• Continuous series

• None

A sample should be

• representative of  only middle school students only
• a very large group
• representative of the population
• representative of people who volunteer

A recent survey of 800 seventh graders from across the state shows 4 out of 10 like to play paper football. How many students said they like to play paper football?

• 40 students
• 200 students 
• 320 students
• 8,000 students

How many independent and dependent variables are there in a One-Way Within Groups ANOVA?

• 1 independent variable and 1 dependent variable

• 2 independent variables and 1 dependent variable

• 1 independent variable and 3 dependent variables

• 1 independent variable and 2 dependent variable