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
romanna [79]
3 years ago
12

The antibody production of 12 male red-winged blackbirds before and after receiving testosterone implants was compared. The unit

s for antibody levels were natural log (10-3 optical density) per minute (ln(mOD/min)). The mean change in antibody production was d = 0.056, and the standard deviation was sd = 0.148 If you were assigned the task of repeating this experiment, and wanted to ensure that you could detect a mean change of 0.03 units with a probability of 0.8, then what sample size would you use? Since we are calculating n for a study of individuals, answers should be rounded up to the next whole number.
Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
4 0

Answer:

I you want to ensure that you could detect a mean change of 0.03 units with a probability of 0.8, then you need at least 40 individuals for the sample.

Step-by-step explanation:

Minimum required sample size can be found using the formula

N≥(\frac{z*s}{ME} )^2 where

  • N is the sample size
  • z is the corresponding z-score for (0.8 probability) 80% confidence level (1.28)
  • s is the standard deviation (0.148)
  • ME (margin of error) is the margin for detecting mean change (0.03)

Using the numbers we get:

N≥(\frac{1.28*1.48}{0.03} )^2 ≈ 40

You might be interested in
3 x 1/4 what is the answer to the question?
Zarrin [17]

Answer:3/4

Step-by-step explanation:

1x3=3

4 0
3 years ago
Read 2 more answers
9x-23=49 what is the second step in this equation?
ladessa [460]

Answer:

Divide both sides by 9.

Step-by-step explanation:

To find the second step of the equation, we actually have to solve parts of the equation until we get to step 2.

Step 1: Add 23 to both sides.

  • 9x - 23 + 23 = 49 + 23
  • 9x = 72

Step 2: Divide both sides by 9.

  • \frac{9x}{9} = \frac{72}{9}
  • x = 8

Therefore, the second step is divide both sides by 9.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

5 0
2 years ago
There are 305 days in a year how many days in 3 years
erastovalidia [21]

Answer:

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which expression is equivalent to 5x-30?<br> A. 5(x-30)<br> B. 5(x-6)<br> C. 5x(x-6)<br> D. x(5-30)
maxonik [38]
The answer is B because 5 times x is 5x and 5 times 6 is 30. Since there is a subtraction sign, it would be equal to 5x-30
7 0
3 years ago
Read 2 more answers
What is the similarity ratio of the smaller to the larger similar cylinders?
lbvjy [14]
\bf \qquad \qquad \textit{ratio relations}&#10;\\\\&#10;\begin{array}{ccccllll}&#10;&Sides&Area&Volume\\&#10;&-----&-----&-----\\&#10;\cfrac{\textit{similar shape}}{\textit{similar shape}}&\cfrac{s}{s}&\cfrac{s^2}{s^2}&\cfrac{s^3}{s^3}&#10;\end{array} \\\\&#10;-----------------------------\\\\&#10;\cfrac{\textit{similar shape}}{\textit{similar shape}}\qquad \cfrac{s}{s}=\cfrac{\sqrt{s^2}}{\sqrt{s^2}}=\cfrac{\sqrt[3]{s^3}}{\sqrt[3]{s^3}}\\\\&#10;-------------------------------\\\\

\bf \cfrac{smaller}{larger}\qquad \cfrac{s}{s}=\cfrac{\sqrt{48\pi }}{\sqrt{75\pi }}\implies \cfrac{s}{s}=\cfrac{\sqrt{(2^2)^2\cdot 3}}{\sqrt{5^2\cdot 3}}\implies \cfrac{s}{s}=\cfrac{4\sqrt{3}}{5\sqrt{3}}&#10;\\\\\\&#10;\cfrac{s}{s}=\cfrac{4}{5}
8 0
3 years ago
Read 2 more answers
Other questions:
  • Garret is in the middle of a 20 -minute bike ride. It takes 4 minutes for him to go a kilometer, so he'll end up going 5 kilomet
    13·1 answer
  • 1.<br> What is the unit price of shampoo if a<br> 15-ounce bottle costs $2.79?
    10·1 answer
  • Rational Equations help!
    6·2 answers
  • Please help due today
    7·1 answer
  • Two linear functions are shown. Which function has the greater initial​ value?
    14·1 answer
  • Abe had some sweets.
    10·1 answer
  • Can the side of a triangle have lengths 2,8,9?
    12·1 answer
  • [AB] is a diameter of center C(O, 3cm). M is a point on (C) such that MA=MB. D is the symmetric of A with respect to M.
    14·1 answer
  • Need help with 17 and 18
    6·1 answer
  • What is the solution to (x + 8) &gt; (2x + 10)?<br> (–∞, –4)<br> (–4, ∞)<br> (–∞, 4)<br> (4, ∞)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!