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
AysviL [449]
3 years ago
10

The report "The New Food Fights: U.S. Public Divides Over Food Science" states that younger adults are more likely to see foods

with genetically modified ingredients as being bad for their health than older adults. This statement is based on a representative sample of 178 adult Americans aged 18 to 29 and a representative sample of 427 adult Americans aged 50 to 64. Of those in the 18 to 29 age group, 48% said they believed these foods were bad for their health, while only 3% of those in the 50 to 64 age group believed this.
(a) Are the sample sizes large enough to use the large-sample confidence interval to estimate the difference in the population proportions?
(b) Estimate the difference in the proportion of adult Americans aged 18 to 29 who believe the foods made with genetically modified ingredients are bad for their health and the corresponding proportion for adult Americans aged 50 to 64. Use a 90% confidence interval.
(c) Is zero in the confidence interval?
Mathematics
1 answer:
Setler79 [48]3 years ago
7 0

Answer:

a) yes

b) ( 0.0280 , 0.1720 )

c) No

Step-by-step explanation:

A) Determine if the sample sizes are large enough

where :

ages between ( 18 to 29 )

p1 = 0.48 ,

n1 = 178 ,      ∴ n1 P1 = 85.44  also n1 ( 1 - p1 ) = 92.56

ages between ( 50 to 64 )

P2 = 0.03 ,

n2 = 427     ∴ n2p2 = 12.81     also n2( 1 -p2 ) = 414.19

<em>since all the values ae above 10 we can conclude that the sample sizes are large enough </em>

<em>answer = yes </em>

<u>B)  Estimate the difference in the proportion of adult Americans aged 18 to 29</u>

= ( 0.0280 , 0.1720 )

attached below is the detailed solution

C)  zero is not included in the interval

     

You might be interested in
The line of reflection is blank and the coordinates of C' are blank ?
denpristay [2]

Answer:

I did this before it is C

Step-by-step explanation:

4 0
3 years ago
4535 divided by 83 = R =
Leto [7]

Answer:

54 R 53

54 53/83

Step-by-step explanation:

4535 divided by 83 equals

54 with a remainder of 53

8 0
3 years ago
CAN SOMEONE HELP ME WITH THESE QUESTIONS PLEASE!?
sukhopar [10]

Answer:

Step-by-step explanation:

1.

(c+9)^2=64=8^2\\

c+9=±8

either c=8-9=-1

c=-8-9=-17

so c=-1,-17

D

2.

8x^2-3=2

8x^2=5

x^2=\frac{5}{8}=\frac{10}{16}

x=±\frac{\sqrt{10}}{4}

so A

3.

x^2+4x+4=18\\(x+2)^2=9*2\\x+2=3\sqrt{2} \\x=-2  ±3\sqrt{2}

so D

or

8 0
3 years ago
Plz help hurry i need to turn this in today and i don't have time to waste
serg [7]

Answer:

Part One: $187

Part Two: 11a + 5.5k

Step-by-step explanation:

Part One:

a = 9 (how many adult tickets)

k = 16 (how many kid tickets)

($11 × a) + ($5.50 × k) = total cost

($11 × 9) + ($5.50 × 16)

($99) + ($88) = $187 = total cost

Part Two:

11a + 5.5k

11 is how much the adult ticket costs, you multiply a or the amount of adult tickets in order to get the total cost for adults.

5.5 is how much the kid ticket costs, you multiply k or the amount of kid tickets in order to get the total cost for kids.

you add 11a + 5.5k or the total cost for adults and the total cost for kids to get the total cost.

3 0
3 years ago
Write the equation of a line that goes the through the point (4 , -2) and is parallel to the line y = 3x - 1/3.
nataly862011 [7]

Answer:

y = 3x - 14

Step-by-step explanation:

If a line is parallel to another, it will have the same slope

So, the line's slope will be 3

Plug in the given point and the slope into y = mx + b, and solve for b

y = mx + b

-2 = 3(4) + b

-2 = 12 + b

-14 = b

Plug in the slope and b into y = mx + b

y = 3x - 14

So, the equation is y = 3x - 14

4 0
3 years ago
Other questions:
  • PLEASE PLEASE PLEASE HELP!!!!! 95 points!!!
    10·2 answers
  • Solve for x.<br> x-2/4 - x+3/3 = -2
    11·1 answer
  • How do you simplify an expression that contains a fraction bar?
    11·1 answer
  • Write an equation that illustrates a number with two decimal places multiplied by a number with one decimal place. The product h
    15·1 answer
  • Since it is a ratio of two integers,<br> 6/4 is irrational
    5·1 answer
  • How do you calculate the explicit solution to dP/dt=kP-h?
    9·1 answer
  • Can someone plz help me with this one problem!!!!
    13·2 answers
  • Solve mixture problems. George wishes to increase the percent of acid in 50m / of a 15% acid solution in water to 25% acid, how
    9·1 answer
  • Find the inverse. Show your work. <br><br> It should probably be a fraction.
    13·1 answer
  • PLEASEE HELPP Analyze these two graphs, which show the population growth (per thousands of people) of North Carolina and the Uni
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!