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
pantera1 [17]
3 years ago
14

In a study published in 2007 by the NCBI and National Institutes of Health (NIH) under their OpenMed initiative, researchers wan

ted to determine if there were "differences between ethnic groups with respect to fetal growth." In particular, were infants of European descent heavier at birth than infants of Chinese descent?
a) What hypotheses are they testing?

1. H0: μEuro - μChinese = 0 vs. Ha: μEuro - μChinese > 0

2. H0: pEuro - pChinese = 0 vs. Ha: pEuro - pChinese ≠ 0

3. H0: μD = 0 vs. Ha: μD > 0



b) The researchers reported for their test a p-value of 0.001. What should they conclude at α = .05?

1.Newborn European infants weigh more, on average, than newborn Chinese infants.

2.There is not enough evidence to conclude that newborn European infants weigh more, on average, than newborn Chinese infants.

3.Newborn European infants and newborn Chinese infants do not have significantly different weights.

4. Ethnicity and weight at birth are independent.
Mathematics
1 answer:
den301095 [7]3 years ago
6 0

Answer:

a) H0: μEuro - μChinese = 0 vs. Ha: μEuro - μChinese > 0

b) Newborn European infants weigh more, on average, than newborn Chinese infants.

Step-by-step explanation:

<em>Null hypothesis</em> would be: infants of European descent has the same weight at birth as Chinese infants. μEuro = μChinese or μEuro - μChinese = 0

And the <em>alternative hypothesis</em> would be: infants of European descent heavier at birth than infants of Chinese descent. μEuro > μChinese or μEuro - μChinese > 0.

Because in particular infants of the European infants are considered heavier. If not,  the alternative hypothesis would be μEuro ≠ μChinese

or μEuro - μChinese ≠ 0.

test a p-value of 0.001 is significant at α = .05, therefore null hypothesis is rejected in favor of alternative hypothesis Ha: μEuro - μChinese > 0, or Newborn European infants weigh more, on average, than newborn Chinese infants.

You might be interested in
Please help asap !! It’s for a exam and it’s due very soon .
katrin [286]

Answer:

32 cans

Step-by-step explanation:

I guessing I could be wrong

btw tell me if its correct

4 0
2 years ago
What is (-i)5?<br> A -1<br> B 1<br> C -I<br> D i
dezoksy [38]

Answer:

-i^5=-i

Step-by-step explanation:

rewrite the equation ;

i^4=1

I^4 *-i = 1*-i=-i

8 0
3 years ago
PLS HELP SHOW ALL YOUR WORKING OUT AND THE CORRECT ANSWER WILL RECIEVE BRAINLIEST
EastWind [94]
So the length is 4*28=112mm
The width would be calculated like this:

you draw an equilateral triangle in the middle with sides or 2r(56mm). The based on pythagorean theorem u know that
h=rad(56^2-28^2)=48.497
28+28+h=104.497

The area would be S=l*w which is 11703.7113mm

5 0
3 years ago
6x/11+2= -2<br><br> what is x?<br> pls hurry I need help<br> Do NOT convert to a decimal
UNO [17]
X both sides by 11
=6x+2=-22
-2 from both sides
=6x=-24
both sides /6
=x=-3
4 0
3 years ago
What’s the property of a + 0 = a
jek_recluse [69]

Answer:Identity property

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • Petra earned scores 30/32, 29/31, and 28/30 on her last three English quizzes .Find each score as a decimal rounded to the neare
    7·1 answer
  • Which value is equivalent to 5 × 10 to the 4th power
    8·2 answers
  • 21 students in michael's classroom are wearing jeans. there are 25 students in his class.michael says that 80% of his class is w
    14·2 answers
  • How did you get 4 13/20
    12·1 answer
  • PLZ HELP ME PLZZZ 15 PTS Mr. Rodriguez asked 60 randomly chosen students from each grade level at Willowbrook School about their
    8·2 answers
  • PLEASE HELP ME! PLEASEEE
    5·2 answers
  • Consider this system of equations. Which shows the first equation written in slope-intercept form? One-half (2 y + 10) = 7 x. y
    13·2 answers
  • Rewrite 65% as a decimal number.
    5·1 answer
  • Andy is scuba diving. He starts at sea level and then descends 10 feet in 2 1/2 minutes. Represent Andy's descent in feet per mi
    10·1 answer
  • PLEASE HELP ME!!! What is the answer to 6x^2-4x+10=0 using quadratic formula
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!