1. a. ![Z \leq-1.645 Z \leq-1.645](https://learn.saylor.org/filter/tex/pix.php/68f1e28399bd583dc107d974b1495283.svg)
b.
or ![T \geq 2.571 T \geq 2.571](https://learn.saylor.org/filter/tex/pix.php/950b48200eef78d315d59ad39a9d99ac.svg)
c. ![T \geq 1.319 T \geq 1.319](https://learn.saylor.org/filter/tex/pix.php/48bfc1d741696d9c5fae1971b3c7e125.svg)
d.
or ![Z \geq 1.645 Z \geq 1.645](https://learn.saylor.org/filter/tex/pix.php/9efbb72d77e9c5f3650c54477be75805.svg)
3. a. ![T \leq-0.855 T \leq-0.855](https://learn.saylor.org/filter/tex/pix.php/0b2eec55afec367bb0900474c63e2654.svg)
b. ![Z \leq-1.645 Z \leq-1.645](https://learn.saylor.org/filter/tex/pix.php/68f1e28399bd583dc107d974b1495283.svg)
c.
or ![T \geq 2.201 T \geq 2.201](https://learn.saylor.org/filter/tex/pix.php/6ac32ccaf6213092d34a7f6fcf11db6d.svg)
d. ![T \geq 3.435 T \geq 3.435](https://learn.saylor.org/filter/tex/pix.php/519dc84bcbe3f801d5b8a88942a431ac.svg)
5. a.
, do not reject
.
b.
-value
, do not reject
.
7. a.
, reject
.
b.
-value
, reject ![H_{0} H_{0}](https://learn.saylor.org/filter/tex/pix.php/7c5081abe6c2100f0e44396b6ac51661.svg)
9.
, reject
.
11.
, reject ![H_{0} H_{0}](https://learn.saylor.org/filter/tex/pix.php/7c5081abe6c2100f0e44396b6ac51661.svg)
13. a.
, do not reject
;
b.
, reject
;
15. a.
, reject
;
b.
, reject
.
17.
, reject
.
19.
, do not reject ![H_{0} H_{0}](https://learn.saylor.org/filter/tex/pix.php/7c5081abe6c2100f0e44396b6ac51661.svg)
21. a.
, do not reject
.
b.
-value ![< 0.10 < 0.10](https://learn.saylor.org/filter/tex/pix.php/d2e81b7861d65b1bc66f1c305c353d96.svg)
c.
, do not reject ![\mathrm{H}_{0} \mathrm{H}_{0}](https://learn.saylor.org/filter/tex/pix.php/d19b6b58f2b765f28e14c5d02edb48d9.svg)