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.)

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.

students group

step-by-step explanation:

a person who   joins a party or a seminar can explain his feelings about that particular occasion better more than anyone else.

as bella managed a show for the students in the school and invited students to watch that show

hence

students group will be the best group to survey to find this information