Every year students at a high school take a physical fitness
test during their gym classes....
Every year students at a high school take a physical fitness
test during their gym classes. One component of the test asks them
to do as many push-ups as they can. Results for one class are
shown below, according to gender. Assuming that students are
assigned to gym classes at random, create a 90% confidence
interval for how many more push-ups boys can do than girls, on
average, at that high school.
Boys 16 28 30 17 23 31 27...
An elementary school is offering 3 language classes: one in
Spanish, one in French, and one...
An elementary school is offering 3 language classes: one in
Spanish, one in French, and one in German. These classes are open
to any of the 99 students in the school. There are 38 in the
Spanish class, 35 in the French class, and 17 in the German class.
There are 13 students that are in both Spanish and French, 5 are in
both Spanish and German, and 6 are in both French and German. In
addition, there are 2...
Consider the following data:
25
24
18
20
21
18
16
20
23
17
15
13...
Consider the following data:
25
24
18
20
21
18
16
20
23
17
15
13
19
23
24
20
16
26
21
24
15
22
16
12
20
23
19
26
20
25
21
19
21
25
23
26
21
19
20
14
(a)
Develop a frequency distribution
using classes of 12-14, 15-17, 18-20, 21-23, and 24-26.
Class
Frequency
12-14
15-17
18-20
21-23
24-26
Total
(b)
Develop a relative frequency
distribution and a percent frequency distribution using the classes...
(SHOW YOUR WORK!!!)
Eight high school teachers were asked to give the number of
students in...
(SHOW YOUR WORK!!!)
Eight high school teachers were asked to give the number of
students in their classes. The sample data is: 36, 32, 31, 23, 18,
24, 34, 28.
a.) Find the mean and standard deviation of the data.
b.) Find the five number summary of the data.
Every year students at a high school take a physical fitness
test during their gym classes....
Every year students at a high school take a physical fitness
test during their gym classes. One component of the test asks them
to do as many push-ups as they can. Results for one class are
shown below, according to gender. Assuming that students are
assigned to gym classes at random, create a 90% confidence
interval for how many more push-ups boys can do than girls, on
average, at that high school.
Boys Girls
18 23
29 6
32 15...
For the following Ungrouped Frequency Distribution
below :
x 14 18 20 21 24 25 28...
For the following Ungrouped Frequency Distribution
below :
x 14 18 20 21 24 25 28 30
f 4 8 3 8 2 5 7 4
1) Find ( Mean , Mode , Median , Range , Midrange , Standard
Deviation , Variance )
2) Find coefficient of variation
3) Compute the z-score of 28
1) What is the value of b1? X: 12, 21, 28, 8, 20. Y: 17, 15,...
1) What is the value of b1? X: 12, 21, 28, 8, 20. Y: 17, 15, 22,
19, 24
2) What is the value of b0? X: 12, 21, 28, 8, 20. Y: 17, 15, 22,
19, 24
3) What is the equation of the y-hat estimator line? X: 12, 21,
28, 8, 20. Y: 17, 15, 22, 19, 24.
a. Y=0.162-16.51x b. y=0.162+16.51x c. Y=16.51-0.162x d.
Y=16.51+0.162x
4) If x is increased by 10 units, how much does y-hat...