For a t distribution with 12 degrees of freedom, the area between ...

[Chelseaamend]

For a t distribution with 12 degrees of freedom, the area between -2.6810 and 2.1788 is 0.980.
 
  Indicate whether the statement is true or false

Question 2

Suppose Z has a standard normal distribution with a mean of 0 and standard deviation of 1. So, 50 of the possible Z values are between ________ and ________ (symmetrically distributed about the mean).
 
  Fill in the blank(s) with correct word

[ky860224]

Answer to Question 1

FALSE

Answer to Question 2

-0.67 and 0.67 or -0.68 and 0.68

[Chelseaamend]

Gracias!

[dreamfighter72]

Thanks for the timely response, appreciate it