Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value
ta/2. (b) find the critical value Za/2, or (c) state that neither the normal distribution nor the t distribution applies.
2
1.6
1.2-
0.8
0.4
0-
.
The confidence level is 90%, o is not known, and the normal quantile plot of the 17 salaries in thousands of dollars) of
basketball players on a team is as shown.
-0.8
-0.434200 8400 12600 16800 21000 D
-1.24.
-1.6
X Values
ma
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
OA. 10/2=
(Round to two decimal places as needed.)
ОВ.
(Round to two decimal places as needed.)
20/2=
13Exi
e (1)
prac