OUTLINED ANSWERS
\Q\.when do you reject the hypothesis - ANSWERS✔-when p < alpha
\Q\.Ho M>18
H1 M< 18 - ANSWERS✔-one tail
\Q\.Ho M = 18
H1 M ≠ 18 - ANSWERS✔-two tail
\Q\.95% confidence... what is the value for alpha - ANSWERS✔-.05
\Q\.critical value = +/- 2.9718 and the t-stat is 2.0505..... do we reject or not reject
- ANSWERS✔-DONT REJECT bc it does not fall within the critical value
\Q\.Which tail are we rejecting in:
Ho: m>18
H1: m<18 - ANSWERS✔-lower
\Q\.Which tail are we rejecting in:
, Ho: m<18
H1: m>18 - ANSWERS✔-upper
\Q\.average test grade IS GOING TO BE 75% . - ANSWERS✔-two tail test
\Q\.average test grade is LESS THAN 75% - ANSWERS✔-one tail test
\Q\.The critical values have to be the same but with +/- signs on both ends -
ANSWERS✔-true
\Q\.remember: - ANSWERS✔-p value -> critical value of z
NOT critical value of t for probability...
\Q\.p-value can only be used for crit value of ____ - ANSWERS✔-z
\Q\.y=Bo+B1 - ANSWERS✔-???
\Q\.y = 45 - 55x whats the slope - ANSWERS✔--55
\Q\.what is the y intercept representing
y=10+3x - ANSWERS✔-the avg value of y when x is zero
\Q\.what is the meaning of the slope