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
Ksenya-84 [330]
3 years ago
5

As men age, their testosterone levels gradually decrease. This may cause a reduction in lean body mass, an increase in fat, and

other undesirable changes. Do testosterone supplements reverse some of these effects? A study in the Netherlands assigned 237 men aged 60 to 80 with low or low-normal testosterone levels to either a testosterone supplement or a placebo. The report in the Journal of the American Medical Association described the study as a "double-blind, randomized, placebo-controlled trial." Explain each of these terms to someone who knows no statistics.1) Explain the term "double-blind" study?2) True or False: :"Randomized means that the subjects were selected randomly from the population of men aged 60 to 80 with low or low-normal testosterone levels."3) Explain the meaning of the term "placebo-controlled" trial?
Mathematics
1 answer:
shutvik [7]3 years ago
7 0

Answer:

Answered below.

Step-by-step explanation:

1) A double - blind study is simply an experiment in which neither the participants nor the people who carry out the experiment know who is receiving any particular treatment. This method is usually used in order to prevent a biased view in research results.

2) True because randomized simply means that subjects were assigned to the group randomly.

3) Placebo - controlled trial simply means that there was a control group that received only a placebo treatment which is mainly designed not to have real effect.

You might be interested in
Question<br> What is the factored form of this polynomial?<br> p(x) = x + 7x2 + 4x - 12
Soloha48 [4]

Answer:

^(3)+7x^(2)+4x-12

Step-by-step explanation:

8 0
3 years ago
I need help on this question plz make it fast
krek1111 [17]
It’s i, II, and iii I do believe.
5 0
3 years ago
HELPPPPP!!!! ASAPPPPP!!!!!
kaheart [24]

Answer:

24

Step-by-step explanation:

XW=WY=12

If the opposite angle is 30, the hypotenuse is double the small side.

XZ=XW=2·12=24

5 0
3 years ago
A rectangles length is 2 in more than its width. The area of the rectangle is 143 square inches. Find the dimensions of the rect
Anastaziya [24]

Answer: The length is 13 inches and the width is 11 inches.

Step-by-step explanation:

Let L represent the length of the rectangle.

Let W represent the width of the rectangle.

The formula for determining the area of a rectangle is expressed as

Area = LW

The area of the rectangle is 143 square inches. This means that

LW = 143 - - - - - - - - - - - - --1

The rectangle's length is 2 in more than its width. This means that

L = W + 2

Substituting L = W + 2 into equation 1, it becomes

W(W + 2) = 143

W² + 2W - 143 = 0

W² + 13W - 11W - 143 = 0

W(W + 13) - 11(W + 13) = 0

W + 13 = 0 or W - 11 = 0

W = - 13 or W = 11

Since the width cannot be negative, it means that W = 11

L = W + 2 = 11 + 2

L = 13

4 0
3 years ago
The experimental probability that Amir will make a basket is 0.4. The experimental probability that Juju will make a basket is 0
madreJ [45]

Answer:

30 baskets

Step-by-step explanation:

The experimental probability Pa that Amir will make a basket is 0.4;

Pa = 0.4

the experimental probability Pj that juju with make the same basket is 0.6;

Pj = 0.6

Total number of shoot Nt = 150

Number of basket Amir will make is;

Na = Pa × Nt

Na = 0.4 × 150

Na = 60 basket

Number of basket juju will make is;

Nj = Pj × Nt

Nj = 0.6 × 150

Nj = 90 basket

6 0
3 years ago
Read 2 more answers
Other questions:
  • If the number of people is greater than the number of segments, each person will get less than one segment, true or false?
    8·1 answer
  • A drawing of the Pittsburgh Airport uses a scale of 1 centimeter = 250 meters. Runway A is drawn 12 centimeters long. How many m
    14·1 answer
  • Veronica deposited $11 in a savings account that earns 1.9% simple interest. Which graph represents this scenario?
    7·1 answer
  • Please help whit ratio
    13·2 answers
  • Howard recorded how much rain fell at his house over four months. The table below shows the amount of rain that fell at Howard's
    15·2 answers
  • Kim has $35. Daniel paid her the $26 he owed her. How much money does Kim now have?
    10·2 answers
  • Jason worked 3 hours more than Keith. Jason worked 12 hours. Which equation represents this situation, if k is the numbers of ho
    10·1 answer
  • Let f(x) = x − 2 and g(x) = x^3. What is (f ◦ g)(2)?
    10·1 answer
  • I need help, image should be attached
    5·1 answer
  • 30 Points: How does it relate to one of these?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!