Biology Forums - Study Force

A Type I error occurs when performing one-way ANOVA when we conclude that the ____________________.
 
  A) population means are equal when, in fact, they are not equal.
  B) sample means are equal when, in fact, they are not equal.
  C) population means are not equal when, in fact, they are equal.
  D) sample means are not equal when, in fact, they are equal.

Q. 2

The sum of squares ________ measures the amount of variation between each data value and the grand mean.
 
  A) within
  B) between
  C) total
  D) error

Q. 3

Apple is considering offering the new version of the iPad in color options other than black and white. Before deciding, Apple would like to survey potential iPad users on their preferences.
 
  Management feels that the gender of the person will affect their response. As a result, Apple would like to ensure the sample in composed of an equal number of male and female respondents. This is an example of cluster sampling. Indicate whether the statement is true or false

Q. 4

The difference between the actual data value and the dependent variable is known as the residual.
 
  Indicate whether the statement is true or false

Q. 5

Which of the following statements isnot true concerning assumptions that ANOVA procedures rely on?
 
  A) Each of the populations being compared follows the normal probability distribution.
  B) The observations must be independent of one another.
  C) The populations being compared have equal variances.
  D) The observations are either nominal or ratio data.

Q. 6

If the slope of the simple regression equation is equal to zero, the scatter plot for the ordered pairs will be a vertical straight line indicating that there is no relationship between the independent and dependent variables.
 
  Indicate whether the statement is true or false

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