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
baherus [9]
3 years ago
15

Instead of power posing in horses, you are interested in whether music can induce a mere exposure effect at short timescales. Yo

u read a paper that claims that it can, reporting a significant mere exposure effect. Alpha level was 0.05, the ratio of true to false effects in this field is 0.7 and the power of this study was 0.8. The probability that this effect is real is
Mathematics
1 answer:
valkas [14]3 years ago
7 0

Answer:

"0.9739" is the correct answer.

Step-by-step explanation:

The given values are:

The ratio of true to false effects,

= 0.07

The power of study,

= 0.8

Alpha level,

= 0.05

Now,

The percentage of effects proved as significant will be:

= 0.8\times \ 70 \ percentage

= 0.56

0r,

= 56%

The percentage of false effects will be:

= 0.05\times 30 \ percent

= 0.015

or,

= 1.5%

The total effects will be:

= 56+1.5

= 57.5%

hence,

The probability that this effect is real will be:

= \frac{56}{57.5}

= 0.9739

You might be interested in
What is the solution to the equation? 2 x squared plus 4 equals 20 Choose all answers that are correct.
Stolb23 [73]
2x^2+4=20\ \ \ \ |subtract\ 4\ from\ both\ sides\\\\2x^2=16\ \ \ \ \ |divide\ both\ sides\ by\ 2\\\\x^2=8\iff x=\pm\sqrt8\\----------------------------\\\sqrt8=\sqrt{4\cdot2}=\sqrt4\cdot\sqrt2=2\cdot\sqrt2=2\sqrt2\ \ \ |use\ \sqrt{a\cdot b}=\sqrt{a}\cdot\sqrt{b}\\-----------------------------\\therefore\ your\ answer\ is\ -2\sqrt2\ and\ 2\sqrt2\to\boxed{a\ and\ c}
8 0
3 years ago
Graph the six terms of a finite series where a1 = −3 and r = 1.5.
s344n2d4d5 [400]
We are given the first term and the common ratio, this means they belong to a geometric series.

For the given series:

a_{1}=-3 \\ 
r=1.5

Each term of the geometric series is obtained by multiplying the previous term by common ratio.

So the next terms will be:

-4.5, -6.75, -10.125, -15.1875, -22.78125

The general formula for the G.P would be:

a_{n}=-3(1.5)^{n-1}

On plotting the series, the result will be like this:

6 0
4 years ago
Read 2 more answers
Solve for x.<br> 6x + 5 = -x + 40<br> B. x= -5<br> A. x = -9<br> D. x= 9<br> C. x = 5
denis23 [38]
C, x=-5, hope this helps
3 0
3 years ago
A clerk at Agency Y has determined that at speeds of 25 pages per minute it is typical for 3 out of every 100 pages she photocop
nalin [4]

Answer:

180 pages

Step-by-step explanation:

Since her photocopy session is 25 pages per minute, the total number of pages photocopied in 4 hour session can be calculated as;

number of pages = time × speed

                                 = (4 × 60) × 25

                                 = 240 ×25

                                 = 6000 pages

Thus, number of pages photocopied in 4 hours is 6000.

For every 100 pages, 3 would contain some type of printing error. The number of pages she expect with printing error during 4 hour session can be determined as;

           = \frac{6000}{100} × 3

           = 60 × 3

           = 180 pages

The expected number of pages with printing error during 4 hour photocopying session is 180 pages.

3 0
3 years ago
Solve each system using substitution. Check your answer<br> 2x+2y=38<br> y=x+3
Mrac [35]
Your answer would be X=8 and Y=11.
4 0
3 years ago
Other questions:
  • There is a cat in front of 2 cats, a cat behind 2 cats, and a cat between 2 cats. What is the least number of cats there could b
    9·2 answers
  • Solve the equation using the distributive property and properties of equality. Negative 5 (a + 3) = negative 55 What is the valu
    12·2 answers
  • Which triangle defined by three points on the coordinate plane is congruent with the triangle illustrated, and why?
    11·2 answers
  • Pls I need help with this ASAP pls The first question. Thanks alot
    9·2 answers
  • What is the value of the following expression?
    8·1 answer
  • 67.77759 rounded to nearest meter
    13·2 answers
  • Juan Ramirez sells suits in a major department store on weekends. he earns a commission of 5 percent on the first ten suits, and
    6·2 answers
  • Crystal pushes a 20 kg box with a force of 40N. What is the box’s acceleration?
    13·2 answers
  • A telephone company charges $4.95 per month for long distance calls plus $0.05 per minute. The monthly cost c of long distance c
    15·1 answer
  • Question 9<br> Find the volume.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!