Which of the following statements is true if a study measures two ...

[nelaaney]

Which of the following statements is true if a study measures two groups on each of 27 variables, and the experimenter carries out a t test for independent means for each variable (that is, 27 t tests) using the .05 significance level?
 
  A) If any of the t tests are significant, there is clearly a difference between groups on all variables at the overall .05 level.
  B) It is not proper to carry out any t tests in this situation.
  C) The chance of a Type II error is high.
  D) The chance of at least one t test being significant is greater than 5.

Question 2

The most common way for a t test for independent means to be reported in a research article is
 
  A) t(i:29 ) < .05
  B) independentt(15 ): 30, p: significant
  C) t(independent) = 2.9, significant
  D) t(45 ) = 3.5, p< .05

[ktidd]

Answer to Question 1

Please could you help me with another one. Thank you

Answer to Question 2

Thank you soo much

[nelaaney]

Wow, this really help

[rachel]

Thanks for the timely response, appreciate it