1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jeyben [28]
3 years ago
8

Fitness experts advise people who want to lose weight to drink protein shakes after workout sessions, because it helps build mus

cle mass and speeds up the weight-loss process. To test the effectiveness of protein shakes in losing weight, 200 adults between the ages of 25 and 40 years were divided equally into two groups: a treatment group and a control group. The treatment group was asked to drink a protein shake after every workout session for a period of 6 months. The subjects’ weights were noted before and after the treatment.
The results showed that the mean change in the amount of weight lost by the treatment group is 8 points more than that of the control group. To test whether the results could be explained by random chance, researchers created a table that summarizes the results of 1,000 re-randomizations of the data with differences of means rounded to the nearest 2 points.

Consider the significance level to be set at 5%, so results less than 5% can be considered statistically significant.


Treatment Group Mean − Control Group Mean Frequency
-12 1
-10 10
-8 28
-6 58
-4 125
-2 184
0 201
2 186
4 114
6 57
8 26
10 8
12 2

Part A
Determine the probability of the treatment group’s mean being greater than the control group’s mean by 8 points or more.
___________
Part B
Is the result statistically significant? Explain your answer.
___________
Part C
What does your answer mean in the context of drinking protein shakes while on a weight-loss program?
_____________
Mathematics
1 answer:
Artemon [7]3 years ago
6 0

Answer:

Part A

The probability of the treatment groups mean being greater than the control group mean by 8points or more = (26+8+2)/1000 = 0.036

Part B

Yes, the result is statistically significant because the probability of the difference being 8point or more is less than 5% significant level

Part C

The answers is 0.036 means that there is a very little chance of obtaining difference of 8points or more by random chance. So, if the difference between treatment group mean and control group mean is at least 8 , then the result is significant which means protein shaken is actually helpful in speeding up the weight-10 process

You might be interested in
185÷5
oee [108]

Answer:

ill download in second ok? yes thnks!!!!

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Find the volume of the triangular prism that has a width of 4in, and length of 8in and a hight of 2in
Stolb23 [73]

Answer:

32

Step-by-step explanation:

3 0
3 years ago
How many real number solutions does the equation have
Ksju [112]
You have to find the discriminat b^2 -4ac

If it is > 0, the function has two real solutions
if it is = 0, the function has one real solution
if it is <0, the function has no real solution

6^2 - 4(7)(3) = 36 - 84 = - 48

Answer c. no solution
5 0
3 years ago
PLEASE HELP ME!!!!!Invasive species spread to new environments by all of the following ways except through
goldenfox [79]
It is d because corona virus
4 0
2 years ago
Please help me, I am completely lost...
charle [14.2K]
5 is the answer, you are welcome.
8 0
3 years ago
Other questions:
  • Kenya exchanges $200 for euros (€). Suppose the conversion rate is €1 = $1.321. How many euros should Kenya receive?
    15·2 answers
  • Select the equation in which the graph of the line has a negative slope, and the y-intercept equals 10. Answer 10x + 5y = –25 5x
    14·1 answer
  • The rate StartFraction 450 pounds Over 25 buckets EndFraction describes the relationship between the number of buckets and the w
    9·2 answers
  • Pythagorean theorem, I'm trying to fix my grade for school so I get my phone back
    14·2 answers
  • Helpppppppp plizzzzzzzzzzzzz
    5·1 answer
  • What is the coefficient in this expression?
    14·2 answers
  • the newspaper reported that 134.8 million viewers watched the Super Bowl. Write the number of viewers in standard form
    9·1 answer
  • PLZZ HELP
    12·2 answers
  • We say that an integer a is a type 0 integer if there exists an integer n such that a = 3n. An integer a is a type 1 integer if
    11·2 answers
  • 50 POINTS !!<br><br><br> PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!