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
tamaranim1 [39]
3 years ago
6

You have been tasked to carry out a study assessing weight and exercise. You enroll 100 participants and weigh them all. You ran

domly assign a new exercise regimen to 50 of the participants and an alternative exercise regimen to the other 50. After 6 months all 100 are brought back to get reweighed. The study design that most best describes this study is:___________.
1. Experimental Case-Control
2. Retrospective
3. Cohort Cross-Sectional Prospective
4. Cohort Ecologic
Mathematics
1 answer:
stepladder [879]3 years ago
4 0
I think it is 1
Hope this helps have a great day!!:)
You might be interested in
Help me with this please
Elenna [48]

Answer:

2,700 sq yds :)))) (d)

Step-by-step explanation:

2(30)=60

1.5(30) =45

60(45)= 2700

3 0
3 years ago
Suppose that distribution of the daily calcium intake of Americans is left skewed with a mean of 800 mg and a standard deviation
babymother [125]

Answer:

Explained below.

Step-by-step explanation:

According to the Central Limit Theorem if an unknown population is selected with mean μ and standard deviation σ and appropriately huge random samples (n > 30) are selected from this population with replacement, then the distribution of the sample means will be approximately normal.

Then, the mean of the sampling distribution of sample means is given by,

\mu_{\bar x}=\mu

And the standard deviation of the sampling distribution of sample means is given by,

\sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}

So, if the sample of daily calcium intake of Americans collected is more than 30, then the sampling distribution of \bar X will be approximately normal.

6 0
3 years ago
Alternate exterior angles are congruent which angle forms a pair of alternate exterior angles with angle 3
zhannawk [14.2K]

Answer:

Angle 6 forms a pair of alternative exterior angles with angle 3.

6 0
2 years ago
Read 2 more answers
1. A manufacturing assembly line packages 26 cases of
romanna [79]

Answer:

It's 10,920 ( E)

Step-by-step explanation:

1 hr = 60 mins

7 hrs = 60 × 7

7 hrs = 420 mins

if they package 26 cases per minute,

they would package 420 × 26 in 7 hours

i.e they'd package 10920 cases in 7 hours

4 0
3 years ago
Helppp me faststttttt plzzzzz
Sophie [7]

Answer:

Step-by-step explanation:

x + 25 + 4x + 10 = 180

5x + 35 = 180

5x = 145

x = 29

<1 = 29 + 25 = 54

<2= 4(29) + 10 = 116 + 10 = 126

7 0
2 years ago
Other questions:
  • Find the z-score for the standard normal distribution where: P (z&lt; -a) = 0.2451
    12·1 answer
  • A person is pulling a freight cart with a force of 59 pounds. How much work is done in moving the cart 80 feet if the cart’s han
    5·1 answer
  • 25 divided by 121.0 work it out to find answer in decimal form
    12·2 answers
  • Okay i need help! A novelist can write 1 7/8 pages in ¾ hour. At that rate, How much can she write in 1 hour?
    13·1 answer
  • Identify a sequence of twins formation that match the triangle ABC onto triangle ABC in the image below​
    13·1 answer
  • When mixed how many cups are in the punch?
    8·2 answers
  • A scuba diver is swimming 15 feet below the water’s surface.
    10·1 answer
  • Given a function described as equation y = 3x + 4, what is y when x is 1, 2, and 3?
    11·1 answer
  • Will give brainiest pls help!
    8·2 answers
  • All points of the step function f(x) are graphed.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!