The distribution of intelligence test scores in the general population forms a bell-shaped pattern. This pattern is called a:

Hector is in second grade. He has just finished his first science fair project and is very proud of it. Although he did not know anything about gravity before his project, he now feels confident that he understands the concept

Which of Erikson's psychosocial stages is Hector in? a. trust vs. mistrust b. autonomy vs. shame and doubt c. initiative vs. guilt d. industry vs. inferiority

You obtained a value of ?2= -10.26 with 2 df. The critical value of ?² with 2 df is 5.99 with alpha equal to .05. In this case you would _____

a. reject H0 b. fail to reject H0 c. know you made a mistake because ?2 cannot be negative d. accept H1