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.)

20 points for the brainliest? drag each tile to the correct box. not all tiles will be used. arrange the steps to solve the equation . plz

Now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Plz ( true - false) all triangles have interior angles whose measure sum to 90.