Biology Forums - Study Force

When the main factor is statistically significant with randomized block ANOVA, the blocking factor will also be statistically significant.
 
  Indicate whether the statement is true or false

Q. 2

The critical value for a one-tail hypothesis test when the population standard deviation is known, the sample size is 30 or more, and  = 0.01 is ________.
 
  A) 2.05
  B) 2.33
  C) 2.575
  D) 2.96

Q. 3

The Department of Housing and Urban Development (HUD) would like to test the hypothesis that the average size of a newly constructed house last year is different from the average size of a newly constructed house in 2000.
 
  The following data summarizes the sample statistics for house sizes, in square feet, for both years. Assume that the population variances are equal. 2000 Last YearSample mean 2,290 2,460Sample size 18 18Sample standard deviation 250 260If Population 1 is defined as homes built in 2000 and Population 2 is defined as homes built last year, which one of the following statements is true?A) Because the 90 confidence interval does not include zero, HUD can conclude that the average size of a newly constructed house last year is not different from the average size of a newly constructed house in 2000.
  B) Because the 90 confidence interval does not include zero, HUD can conclude that the average size of a newly constructed house last year is different from the average size of a newly constructed house in 2000.
  C) Because the 90 confidence interval includes zero, HUD cannot conclude that the average size of a newly constructed house last year is different from the average size of a newly constructed house in 2000.
  D) Because the 90 confidence interval includes zero, HUD can conclude that the average size of a newly constructed house last year is equal to the average size of a newly constructed house in 2000.

Q. 4

A dependent variable, x, explains the variation in another variable, which is called the independent variable, y.
 
  Indicate whether the statement is true or false

Q. 5

As long as the main factor is statistically significant with randomized block ANOVA, there is no concern about the significance of the blocking factor.
 
  Indicate whether the statement is true or false

Ans. #1

FALSE

Ans. #2

B

Ans. #3

B

Ans. #4

FALSE

Ans. #5

TRUE

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