A researcher wants to know if drinking beer makes a person more attractive to mosquitos. 120 people were recruited to partake in this experiment. Each person was randomly assigned to either drink beer or to ingest water. The subject after drinking their beverage was seated close enough so that odor from the individual would be detectable by the mosquitoes (note that the mosquitoes could not actually touch the humans). The researcher then recorded whether or not the mosquito flew toward the subject (assumed flying toward person meant they were attracted to them). 68 people were assigned to drinking beer, while the other 52 were assigned to drinking water. Out of the 68 who drank beer 43 of them had a mosquito fly toward them, while 26 of those who drank water had a mosquito fly toward them. (This is based loosely off an experiment performed by Lefevre et al. (PLOS ONE, 2010)).
Research Question: Are mosquitos more attracted to people who drink beer than water?
1. Identify the explanatory and response variables. State their type.
2. Fill out the 2x2 table below.
TOTAL TOTAL
3. State the parameter of interest and assign a symbol.
4. Calculate the conditional proportions. What does each stand for? Assign a symbol to each.
5. Are the values in question #4 statistics or parameters? Explain.

Answers

Answer 1

Answer:

No because both of them mosquito got attracted to them

Answer 2

Answer:

Research answer: No because people who drink more water more than beer should NOT have mosquitoes attracted to them

1. i can identify that if you drink more beer you can get mosquito bites

2. 68 26

3. ?

4. they stand for how many people drink beer or water

5. statistics because in my stats, i can see more people drinking water more than beer

Step-by-step explanation:


Related Questions

the total cost of a $112.75 meal with a 20% tip​

Answers

Answer:

$135.30

Why:

Take the 112.75 and multiply it by 1.2, or in other words 120%. You get 135.3, or in a money situation, $135.30. Good luck.

112.75 x 0.2= 22.55
112.75 + 22.55 = 135.3
$135.3

solve these equations show solutions on a number line.
|x+8|=x+8

Answers

9514 1404 393

Answer:

  x ≥ -8

Step-by-step explanation:

The absolute value does nothing when its argument is non-negative.

  x +8 ≥ 0

  x ≥ -8 . . . . . . . subtract 8 from both sides

It takes Madison 8 minutes 13 seconds to walk around the track at school. It takes James 7 minutes 31 seconds to walk around the track. How many more seconds does it take Madison to walk around the track than James? (1 minutes = 60 seconds)

PLS HELP FASt

Answers

Answer:

32

Step-by-step explanation:

1 minute and 22 seconds

Jack borrowed $ 4,000.00 and paid $ 585.00
in simple interest after 4 year 6 months. What
was the annual rate of interest?​

Answers

Answer:

3.25%

Step-by-step explanation:

The formula for simple interest is I = PRT, where I = interest earned/paid, P = principal amount deposited or borrowed, R = rate of interest as a decimal, and T = time in years.

I = PRT

585 = (4000)(r)(4.5)

585 = 18,000r

r = 0.0325

Multiply by 100 to get the percentage

0.0325 = 3.25%

please help me i have the pic below: find the 27th term given the function an=-10+(n-1)(-2)

Answers

Answer:

-62

Step-by-step explanation:

Plug 27 into the equation

a27=-10+(27-1)(-2)

27-1=26

26 times -2 = -52

-52-10=-62

a_n=-10-2(n-1)

So

a_27

-10-2(26)-10-52-62

Option D

Help please, i need it asap

Answers

Answer:

∠BCA = 59

x = 2

∠B = 83

Step-by-step explanation:

Properties of a parallelogram:

Opposite angles are congruent

Opposite side lengths are congruent

That being said lets find x, ∠B and ∠BCA

First x

Segment AD and segment CD are parallels which are congruent

Knowing that we create an equation

6x = 12

step 1: Divide each side by 6

6x/6=x

12/6=2

we're left with x = 2

For ∠B

∠D and ∠B are opposite angles of a parallelogram

meaning that ∠D≅∠B

So if ∠D=83 then ∠B also = 83

For ∠BCA

∠BCA and ∠DAC happen to be opposite angles ( like stated previously opposite angles are congruent.)

Because ∠DAC = 59 ∠BCA also = 59

What is the value of x?

Answers

Answer:

707,957

Step-by-step explanation:

x= 518*tan(42°) + 518*tan(25°) =518*(tan(42°)+tan(25°))≈518*1.367=707.957

Answer:

707,957

Step-by-step explanation:

Find the surface area of a cylinder with radius 2.5 cm and height of 7.3 cm.

Answers

A= 2π r h + 2 π r^2= 2.5*7.3+2* π*2.5= 153.93804
Or....
153.94
:)

Rewrite the equation by completing the square.
x² +3x -28 = 0

Answers

Answer:

x = -7 and x = 4

Step-by-step explanation:

that's the answer

The length of a rectangle is (2x-3) and the width is (x+6) which of the following is a representation of area

Answers

Answer:

(2x+3)(x+6) or 2x^2 + 15x + 18

Step-by-step explanation:

Area = Length x Width

Length = (2x-3)

Width = (x+6)

(2x-3)(x+6)

2x^2 + 12x - 3x - 18

2x^2 + 15x + 18

Final Answer: (2x+3)(x+6) or 2x^2 + 15x + 18

Can someone tell me the answers

Answers

Answer:

3rd one is correct

Step-by-step explanation:

3) -5
A) quintic monomial
B) constant trinomial
C) constant monomial
D) quadratic monomial

Answers

Answer:

Constant monomial

Step-by-step explanation:

Monomial means that there is only one term, so constant trinomial cannot be correct.

Quintic monomials have a degree of 5 and quadratic monomials have a degree of 4, but this has a degree of zero, so this must be a constant monomial.

I hope this helps you. Have a nice day.

Question 4
The results of the Woodlands Middle School poll show that 20% of
the students prefer the aquarium and 50% of the teachers the
aquarium.
Which of the following statements is true?
There is evidence that teachers at Woodlands Middle may prefer the aquarium
more than students.
There is not enough evidence to support a relationship between destination
preference (aquarium or amusement park) and school role (student or teacher).
Woodlands Middle may prefer the aquarium
There is evidence that students
more than teachers.

Answers

Answer:

There is evidence that teacher at Woodlands Middle May prefer the aquarium more than students

Step-by-step explanation:

There is evidence that teachers at Woodlands Middle may prefer the aquarium (Option A) is the true statement from all the available options.

Why do we do sampling?

We do sampling so that we don't have to work on entire population of items but only on that sample in a way that we can predict information about population.

Most of the times, it isn't possible in real world to work on entire populations. Samples come out for rescue by assumptions that they will have some properties of the population pertained in them.

Thus, the sample should be taken out such that it includes data of the population as much  as it can in unbiased way so as to imitate population.

Poll oftenly uses sampling.

The data obtained from the poll shows that:

20% of the students prefer the aquarium and 50% of the teachers the

aquarium.

That means, from the poll, we found that out of total students, 20% prefer aquarium whereas 50% of total teacher prefer aquarium.

Since we conclude from sampling only as this is the usual way we do conclusion about population, and since percentage shows that less students' proportion prefer aquarium than the proportion of teachers prefering aquarium, thus,

There is evidence that teachers at Woodlands Middle may prefer the aquarium (Option A) is the true statement from all the available options.

Learn more about sampling here:

https://brainly.com/question/24842573

Please help! I'm giving branniest for the correct answer! (SHOW WORK)​

Answers

Answer:

102

Step-by-step explanation:

it's a parallelogram so it's BxH

A = 15x8 = 120

inside rectangle A is LxW

6x3 = 18

subtract the inside from the outside

120-18 = 102

If x varies directly as y, find x when y = 8.

x = 14 when y = -2

X=_____

Answers

Answer:

-56 maybe

Step-by-step explanation:

-2*-7=14

8*-7= -56

Plz help me this very important

Answers

The answer will be 31 hope it right

Which quantity is proportional to 5/25?

Answers

1/5 is the answer i think hope I helped

Answer:

i think the correct answer is 1/5.

Step-by-step explanation:

hope this answer will help u.

have a great time.

You borrow money for 4 years. The total amount you repay is $7,840, which includes $840 in simple interest. How much was the principal?

Answers

Answer:

$7,000

Step-by-step explanation:

$7,840 - $840 to get the principal value

$7000

Answer:

7000

Step-by-step explanation:

the repay amount - interest =  principal

7840 - 840 = 7000

An art teacher recorded whether the students in three of her classes prefer water color or oil painting. The art teacher plans to create a two-way table to analyze her results. Which variables can the art teacher use as the row and column headings of the table? O painting preference and total number of students O painting preference and number of students in class 1 O class number and painting preference O class number and number who prefer oil​

Answers

Answer:

C. class number and painting preference

Step-by-step explanation:

just got done with the quiz

The perimeter of a rectangle is 62.the length is 5 less than 3times the width. Find the width and the length

Answers

Answer:

length = 22, width = 9

step by step explanation :

perimeter = 62

length = 3×width -5

∴ 2 ( length + width ) = perimeter

2 ( 3w-5 + w ) = 62

3w -5 + w = 62/2 = 31

3w -5 + w = 31

4w  = 31 + 5 = 36

4w = 36

 w =36/4

 w = 9

l= 3w-5 = (3×9)-5 = 27-5= 22

verifying -

2( l + b) = perimeter

2 ( 22 + 9 ) = 2 * 31 = 62

hope this answer helps you....

A 20 in wagon wheel has 6 spokes. What is the outside distance between the end of the spokes if they are spaced evenly(arc length)?

Answers

Answer:

10.47 inches

Step-by-step explanation:

circumference = πD = 3.14(20) = 62.8 inches

62.8 inches/6 spaces = 10.47 inches per space

Anyone knows the answer???

Answers

Answer:

351.9 m²

Step-by-step explanation:

[tex]SA=2\pi r^2+2\pi rh[/tex] where r is the radius of the base and h is the height of the cylinder

We're given the diameter of the base, which is 8 m. Therefore, the radius is 4 m (after dividing by 2).

Plug in 4 as r and 10 as h

[tex]SA=2\pi (4)^2+2\pi (4)(10)\\SA=2\pi (16)+2\pi (40)\\SA=32\pi +80\pi \\SA=112\pi[/tex]

Therefore, the surface area of the cylinder is approximately 351.9 m² after rounding to the nearest tenth.

I hope this helps!

351.9 to the power of 2

Solve these equations.

Answers

Answer:

no solution

Step-by-step explanation:

|x-33| = -33

An absolute value must be greater than or equal to zero

The right hand side is a negative number.

There is no solution

Answer:

No solution

Step-by-step explanation:

When you do the absolute value, it is equal to a negative number. Which does not make sense so no solution


Amir subtracted a quantity from the polynomial 3x² + 8x - 16 and produced the expression x^2- 4. What quantity did Amir subtract? Explain how
you got your answer.

Answers

Answer:

[tex]2x^2+ 8x -12[/tex]

Step-by-step explanation:

Given

[tex]P = 3x^2 + 8x - 16[/tex]

[tex]Result = x^2 - 4[/tex]

Required

The quantity subtracted

Let the subtracted quantity be Q. So, we have:

[tex]P - Q = Result[/tex]

[tex]3x^2 + 8x - 16 - Q = x^2 - 4[/tex]

Collect like terms

[tex]Q = 3x^2 - x^2+ 8x - 16 + 4[/tex]

[tex]Q = 2x^2+ 8x -12[/tex]

The quantity subtracted is: [tex]2x^2+ 8x -12[/tex]

if f(7)=20, write the corresponding ordered pair​

Answers

Answer:

(7,20)

Step-by-step explanation:

Oftentimes we write [tex]y=f(x)[/tex]. This suggests that [tex]x=7[/tex] and [tex]y=20[/tex]. Therefore, the ordered pair is [tex](x,y)=(7,20)[/tex].

x + 4y = -26 -5x - = -14​

Answers

Answer:

x=14/5, y=-36/5. (14/5, -36/5).

Step-by-step explanation:

x+4y=-26

-5x=-14

------------

5x=14

x=14/5

14/5+4y=-26

4y=-26-14/5

4y=-130/5-14/5

4y=-144/5

y=(-144/5)/4

y=(-144/5)(1/4)

y=-144/20

simplify

y=-36/5

How much of the circle is shaded 1/7 + 1/2

Answers

Answer:

The answer would be 0.64285714285

Step-by-step explanation:

You just add both of the fractions you showed above

The area of a square field is 14400 sq. metre. Find the length of the side
of the square.

Answers

Answer:

side = 120 metre

Step-by-step explanation:

here's your solution

=> Area of square = 14400 sq.metre

=> Area of square = side^2

=> side^2 = 14400 sq.metre

=> side = √14400

=> side = 120 metre

hope it helps

Side=120 meters explanation in other response

The ratio of dogs to cats at the local
shelter is 2 to 5. There are 20 dogs at
the shelter. What is the total number
of cats and dogs at the shelter?
A. 28
B. 50
C.
70
D. 8
Need

Answers

Answer:

B 50

Step-by-step explanation:

Option 1) 2/5 = 20/x  |  20/2 = 10 so x = 10  |  5 times x 10 =50

Option 2) dogs 2 to cats 5  |  2/5 = 20/x  |  .40 = 20/x  |  .40x = 20  |  x = 50

Option 3) you can look and see that 20 is 10 times more than 2 and therefore infer that x is 10 times more than 5 which is 50

Due to a manufacturing error, three cans of regular soda were accidentally filled with diet soda in a 12 pack. Suppose that two cans are randomly selected from the 12 pack. Answer A-C.
(a) determine the probability that both sodas contain diet soda p(both diet) = ????
(b) determine the probability that both contain regular soda p(both regular) = ????
(c) determine the probability that exactly one is diet and one is regular p(one regular and one diet) = ????

Answers

Answer:

a- 3/4

b- 1/4

c- 3/16

Step-by-step explanation:

Other Questions
what do you mean by the term ,'Pendamic'? Explain why a cell is considered the basic unit of life? Renewable energy resources like solar energy and wind power are still too expensive to be practical on a large scale. True or False? A caterer is preparing a dinner for a party. Shecharges an initial fee of $16 and $8.25 per person. How manypeople can attend a dinner that costs $131. 50? Write an equationand solve. A compass has a diameter of 22 cm. Which of the following is the area of the compass rounded to the nearest tenth The Painting Company has determined that for every 112 square feet of wall space: One gallon of paint at $9.53 per gallon is required if total square feet is 2000 or less. If square footage is greater than 2000, paint is $10.50 per gallon. 8 hours of labor at $35 per hour is required. A hazardous material disposal fee of 7.5% of the total paint cost is required. Create a function called paintJobCost which allows the user to provide the total number of square feet for the paint job and produces an itemized list of charges that includes: Number of gallons of paint required. Total Cost of the Paint (Paint Cost x Gallons Required) Hours of labor required to paint (8 hrs per 112 sq ft) Total Cost of the Labor. The hazardous material fee. The total cost of the paint job. (Paint Cost + Labor Cost + Hazardous Material fee) Your function, when called, must display all the above information exactly as shown below. Expected Output Call the paintJobCost function where the total square footage of the paint job is 1800. Square Footage Paint Required Paint Cost 16.07 gal $153.16 Labor Hours 128.57 hrs Labor Cost $4,500.00 Hazard Fee $11.49 TOTAL COST OF PAINT JOB $4,664.65 Call the paintjobCost function where the total square footage of the paint job is 2700. Square Footage Paint Required 2700 24.11 gal Paint Cost $253.12 Labor Hours 192.86 hrs Labor Cost $6,750.00 Hazard Fee $18.98 TOTAL COST OF PAINT JOB $7,022.11 Call the paintJobCost function where the total square footage of the paint job is 3200. Square Footage Paint Required Paint Cost 3200 28.57 gal $300.00 Labor Hours 228.57 hrs Labor Cost $8,000.00 Hazard Fee $22.50 TOTAL COST OF PAINT JOB $8,322.50 HELP ASAP!!!!!!!!!!!! iMODELING REAL LIFE You borrow $1300 to buy a telescope. What is the monthly payment?11.8% Simple InterestEqual monthlypayments for 2 years A system of equations is shown below. y=-x+3 y=3-/2 Does the ordered pair (-4, 6) satisfy the system? Justify your answer. multiply out and simplify (x+5)(x-1) -77w - 49 in expanded form Each side of a square classroom is 8 yards long. The school wants to replace the carpet in the classroom with new carpet that costs $79.38 per square yard. How much will the new carpet cost? Which of the following functions has a lower bound but no upper bound?A. e^x^2B. sin(x)C. 1/xD. ln(x) What information is needed to find the surface area and volume of a rectangular prism? Fill in the spaces with the correct form of the verb in simple present tense Complete the conversations with the correct words. Use one word only.1. A: Are those your bags? B: No, those aren't ______2.A: __________sunglasses are those? B: I don't know.3.A: Is that Tom's car? B: I'm not sure, but Emma has a car like that. I think it's _________ 2/3x^2+15=23help please what is the area of a triangle with a base of 2 5/8mm and a height of 10mm.A. 6 1/4 mm2B. 13 1/4mm2C. 16 3/8mm2D.26 1/4mm2 Without solving, tell what is true of the product of 8 and 12. The sum of three whole numbers in 27. The mean of the three whole numbers is 9, and the greatest number is twice the least number. What is the greatest number?A. 9 B. 12C. 18D. 24