Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (b) below.
Click the icon to view at distribution table.
a. What is the number of degrees of freedom that should be used for finding the critical value 1/2?
df=
(Type a whole number.)
b. Find the critical value a/2 corresponding to a 95% confidence level.
*/2=17
(Round to two decimal places as needed.)