A study was conducted with the objective of determining the effect of two different strength-training programs, one involving the use of a balance ball and the other using stationary exercise equipment, on blood pressure and cholesterol levels in women over the age of 60. Eighty women over the age of 60 were identified and randomly divided into two equal-sized experimental groups. Each member of the two groups was trained and allowed to follow the prescribed routine for 8 weeks. The subjects were aware of the purpose of the study but not that there were two different treatment groups involved. The cholesterol levels and blood pressure for subjects were measured at the start and at the end of the 8 weeks. The experimenter and the medical technician were not told to which group any of the subjects were assigned. This is an example of an attempt to conduct

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Answer 1

Answer:

The answer is "a double-blind randomized experiment".

Step-by-step explanation:

In this question, the above option is right, since we realize here how we have randomly separated image into three accurately evaluate, it implies whether random sampling is oresepr and also that the citizens, as well as the medical technician, have no idea whatever the party has got, implying their two-blind diagnosis.


Related Questions

It the end of the day l need this last one

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The correct answer choice is B

I would appreciate it please I need help

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Answer:

B. n + 9

Step-by-step explanation:

Given:

n² + 3n - 54

Let's factorize

n² + 9n - 6n - 54

n(n + 9) -6(n + 9)

(n - 6)(n + 9)

Therefore, out if the options given, n + 9 is the expression of the factor of n² + 3n - 54.

HELP ASAP IM CONFUsed!!! Thanks!!!

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i think it is 1, 4, 6, and 7, although it looks different from when i learned this unit.

Hey someone pls help the girl out

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Answer:

because one i one is higher than the other, if you look at it

Answer:

Larger

Step-by-step explanation: 6/5= 1.2 so 1.2 would be diametrically larger

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The answer would be the second one

Use the Zero Product Property to solve the equation.
(3y − 9)(12y + 2) = 0

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Answer:

Exact form would be like this, y=3, -1/6

Decimal form would be like this, y=3, -0.16666666666666666666666 and keep adding 6's.

Step-by-step explanation:All you do is isolate the variable by dividing each side by factors that don't contain the variable. Sorry I took so long I'm trying to answer multiple problems at once. Hope this helps you out.    :   )

pleased help me! I need the question it due today.

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Answer:

7. -21-15g

8. x+3y+7

Step-by-step explanation:

use multiplication for number 7

number 8 is just rearranging the numbers

number 9 is confusing since i don't know if it's a point or another symbol

Why are tenths, fifths, fourths, and halves easy
to express as percent?

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because they all go into 100 easily. for example 10×10=100 5×20=100

Please help!!
“ which of the following is equivalent to 4/9 “

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The correct answer is A, because the bar over the 4 indicates that it is continuous.
Hope this helps The correct answer is a to this

Raheem's entire workout consisted of 15 minutes of warm-up exercises, 30 minutes of lifting weights,and 45 minutes on the treadmill.What is the ratio of the number of minutes he lifted weights to the total number of minutes of his entire workout? a. 1:1. b. 1:3. c.1:9. d.3:10

Answers

Answer:

b

Step-by-step explanation:

Time taken for the total workout = 15 + 30 + 45 = 90 minutes

Time taken for lifting weight : total time = 30 : 90

                                                                 = 1 : 3

Todd drank 6/8 of a 30-ounce can of juice. lila drank 1/4 as much juice as Todd did. How many
ounces did lila drink?​

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Easy you divide 30 by 4 so you get 7.5. So she drank 7.5 liters

f(x) = x^5 +x^3+2x^2-12x +8

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Answer:

35 is the answer to this problem

Step-by-step explanation:

A tree measured 12 1/2 feet tall. Over the next 5 1/2 years it grew to be 51 feet tall. During the 5 1/2 years, what was the average yearly growth rate of the tree?

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Answer:

7 feet

Step-by-step explanation:

Let's find how many feet did the tree gain during 5 1/2 years:

51 - 12.5 = 38.5

Now devide this number by 5 1/2 to find average length tree gained yearly:

38,5 / 5.5 = 7

what must you do with an inequality symbol if you divide or multiply both sides by a negative number?

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When you multiply or divide both sides of an inequality by a negative, you must switch the direction of the inequality sign. Please give this idea of your full attention. Even the most advanced algebra students will sometimes forget to switch the direction of the inequality sign when multiplying or dividing both sides of an inequality by a negative.

what is the value of 4.112-8​

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Answer: -3.888 Step-by-Step Explanation:

which fraction is equevleint to 5/7

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Answer:

10/14

Step-by-step explanation:

Answer: 10/14

Step-by-step explanation:

help—————————————————

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Answer:

False

Step-by-step explanation:

The range of the function is the set of all possible y values, in our case that would be {5, 6, 8, 13}, there for the range of the function is not {2, 4, 5, 6}, therefore the statement is false.

HELP ME PLEASE! I need this !

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Answer:

Step-by-step explanation:

[tex](3x+7)8x^2\\ \\ 3x(8x^2)+7(8x^2)\\ \\ 24x^3+56x^2[/tex]

can someone help please!

Answers

Answer:(6, 5)

Give me brainliest

What is the surface area of the pyramid formed from the net shown here? The triangles are equilateral, and each triangle has a height of 5.2 centimeters. Write your answer rounded to one decimal point and with the correct unit. the base is 6 cm

Answers

Answer:

62.4

Step-by-step explanation:

Sophie found the volume of the figure below by using the steps shown.
A rectangular prism with a length of 28 millimeters, width of 21 millimeters, and height of 4 millimeters. A rectangular pyramid with a base of 28 millimeters by 21 millimeters and height of 26 millimeters.

Total Volume = B h + one-third B h = 4 (21) (28) + one-third (21) (28) (30) = 2,352 + 5,880 = 8,232 cubic millimeters.

What mistake, if any, did Sophie make?
Sophie determined the volume correctly.
Sophie used the wrong formula for the total volume.
Sophie used the wrong height for the pyramid.
Sophie did not apply the order of operatio

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Answer:

(C) Sophie used the wrong height for the pyramid.

Step-by-step explanation:

she should have subtracted 4 from 30 because that was apart of the prism

The total volume is 7448  cubic millimeters. Sophie has made mistake in copying height of pyramid.

What is the volume?

Volume is the measure of the capacity that an object holds.

Formula to find the volume of the object is Volume = Area of a base × Height.

Given that, a rectangular prism with a length of 28 millimeters, width of 21 millimeters, and height of 4 millimeters.

Volume of rectangular prism = Length×Width×Height

= 28×21×4

= 2352 cubic millimeters

A rectangular pyramid with a base of 28 millimeters by 21 millimeters and height of 26 millimeters.

Volume of a rectangular pyramid = (lwh)/3

= (28×21×26)/3

= 15288/3

= 5096 cubic millimeters

Total volume = 2352+5096

= 7448  cubic millimeters

Hence, Sophie has made mistake in copying height of pyramid.

To learn more about the volume visit:

https://brainly.com/question/13338592.

#SPJ3

Use the ruler provided to measure the radius of the circle to the nearest centimeter.
Which measurement is closest to the area of the circle in square centimeters?

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Answer

its B

Step-by-step explanation:

Answer:

43.96 2 cm2

Step-by-step explanation:

Can someone help me please

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Put the letter a & the b , & c and d

culate wages and taxes
Mr Singh is paid £11.70 per hour after tax is deducted.
a) How much does he earn if he works 5 hours?
b) How much does he earn if he works 10 hours?
c) He works 37.5 hours per week.
How much does he earn in a week?
Please help!

Answers

Answer:

a) £58.5

b) £117

c) £438.75

Step-by-step explanation:

Mr Singh is paid £11.70 per hour after tax is deducted.

This means that for x hours of work, his earning are given by:

[tex]E(x) = 11.7x[/tex]

a) How much does he earn if he works 5 hours?

This is E(5).

[tex]E(5) = 11.7*5 = 58.5[/tex]

b) How much does he earn if he works 10 hours?

This is E(10).

[tex]E(10) = 11.7*10 = 117[/tex]

c) He works 37.5 hours per week. How much does he earn in a week?

This is E(37.5).

[tex]E(37.5) = 11.7*37.5 = 438.75[/tex]

Solve this problem 3/4 - (-2/5)=

Answers

Answer:

23/20

Step-by-step explanation:

To subtract the fraction, find LCD and combine.

Answer:

1.15 is the answer ababbasba they making me type so much but the answer is 1.15

What are the 2 answers?

Answers

Answer:

7060

Step-by-step explanation:

by solving inequality :

x-3 <70x < 73

so the value of x should be less than 73.

so required values are 70 and 60

70 and 60 are the correct answers. If you take 70 and subtract 3 you get 67, which is less than 70. If you take 60 and subtract 3 you have 57, which is less thna 70. Basically any number that is 72 or less would be a coorect answer

What’s the answer please

Answers

With 1/2 of the marbles being red you are mostly likely to pick a RED marble out of the bag

Brandon’s family is having pizza for dinner tonight. Before knowing he would have to share with the rest of his family, Brandon cut a piece for himself as shown by the diagram. Both of his parents, his sister, and his two brothers will now equally share the remaining pizza. What is the approximate area each one receives?

Answers

Answer:

plz can someone give me the asnwer

Step-by-step explanation:

plz

Georgie had her roof repaired. She was charged an extra 2.5% for late payment. She had to pay a total of £977.85. Calculate how much she would have saved if she had paid on time. Help me please

Answers

Step-by-step explanation:

977.85-2.5%= 953.40

977.85-953.40= £24.45 potentially saved.

Answer:£23.85 is your answer.

x+2.5%ofx=£977.85

x(1+2.5/100)=£977.85

x=£977.85/(1.025)=954

saving money will be =£977.85-954=£23.85

What is the seventh multiple of 4 answer for brainiest

Answers

Answer:

4, 8, 12 ,16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100.

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