Clinical literature reports that the duration of a typical cold is roughly 18 days. Researchers wanted to know if people tend to underestimate the duration of a typical cold, on average. They surveyed a random sample of 352 healthy adults in Georgia and asked them how long they think that a typical cold lasts. The researchers reported a 95% confidence interval of 6.9 to 8.2 days for the mean expected duration of typical cold.
Which of the following is the correct interpretation for this confidence interval?
a. We are 95% confident that the sample mean duration is between 6.9 and 8.2 days.
b. We are 95% confident that the population mean duration is between 6.9 and 8.2 days.
c.There is a 95% chance that the mean duration of another random sample from this population would be between 6.9 and 8.2 days.
d. There is a 95% chance that a randomly selected individual from this population would give a response between 6.9 and 8.2 days.

Answers

Answer 1

Answer:

b. We are 95% confident that the population mean duration is between 6.9 and 8.2 days.

Step-by-step explanation:

x% confidence interval:

A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.

95% confidence interval of 6.9 to 8.2 days for the mean expected duration of typical cold.

This means that we are 95% sure that the true duration of a typical cold(population mean) for all health adults in Georgia is between 6.9 and 8.2, which means that the correct answer is given by option b.


Related Questions

PLESS I BEGG FOR YOUR HELP U GET BRANILY AND A LOT OF POINTS
Louise measured the perimeter of her rectangular scrapbook to be 150 cm. If the scrapbook is 42 cm wide, how long is the scrapbook?
A.
75 cm
B.
31 cm
C.
66 cm
D.
33 cm

Answers

D. 33 cm

P=2L+2W
P= 2(33)+2(40)=150

i will give a crown if you are the first one to answer and if you get it right and if you just get it right then i will i give you a full star rating and a thanks

Answers

Answer:

10x+8

Step-by-step explanation:

Answer:

10x + 8 is the answer

Step-by-step explanation:

To simplify the equation we must use the Distributive Property meaning that

we must distribute 2 to each term

                                                     5x(2) + 4(2)

                                                        10x + 8

            There You Go, Have a Wonderful Day, And Hope This Helps

NEED HELP ASAP FREE BRAINLIST

Answers

Answer:

G

Step-by-step explanation:

Answer:

now they can have brain

Step-by-step explanation:

How do you multiply polynomials ??

Answers

Answer:

multiply each term in one polynomial by each term in the other polynomial.

add those answers together, and simplify if needed.

Step-by-step explanation:

Use FOIL !

1. multiply each term in one polynomial by each term in the other polynomial

2. add those answers together, and simplify if needed

Multiply polynomials the same way you multiply monomials and bionomials. You can also use symbolab to check if your answer is correct

Good luck! Don't be afraid to comment something below this if you have another specific question.

PLEASE HELP ASAP

2 : 6 : 7 = x : 36 : y

Answers

Answer:

2:6:7=12:36:42

Step-by-step explanation:

hope its right  :)

Brainiest guranted question below.

Answers

Answer:

48

Step-by-step explanation:

30 is 5/8 of ?

30x8=240

240/5=48

(18 Math teachers and 30 non-Math teachers)

Please help me!!!!!!!

Answers

it is 15 if you add and then divid

(1/5)³= help me plz its been like more hours since i fond this site like I got into this site yesterday

Answers

To cube a fraction, we simply cube both the numerator and the denominator.

So we have 1^3/5^3 which is 1/125.

The captain of a ship at sea sights a lighthouse which is 120 feet tall. The captain measures the the angle of elevation to the top of the lighthouse to be 16 ^\circ. How far is the ship from the base of the lighthouse? feet

Answers

Answer:

As viewed on the deck, the lighthouse is 50-6 = 44 m above. First we need to compute the two distances from the captain and the lighthouse. For point1:

d1 = 44 / tan(60) = 25.403 m

For point2:

d2 = 44 / tan(30) = 76.210 m

The distance traveled by the ship in five minutes is 50.807 m or 0.050807 km. Five minutes is equivalent to 1/12 hours.

The speed is then equal to 0.050807/(1/12) kph = 0.61 kph.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

Step-by-step explanation:

Helppppppp plsssssssssss

Answers

Answer: 43.5 cm²

Step-by-step explanation:

Area for a trapezium is: a + b/2 X h

13 + 16/2 X 3 = 43.5 cm²

Answer:

43.5

Step-by-step explanation:

[tex]a=\frac{base 1+base2}{2} h[/tex]

[tex]a=\frac{13+16}{2} *3\\a=\frac{29}{2} *3[/tex]

[tex]a=\frac{87}{2\\} \\a=43.5[/tex]

Find the surface area
Will give brainliest

Answers

The correct answer is 136

what are the steps on finding common denominators. PLEASE HELP

Answers

Step-by-step explanation:

to find a common denominator, you have to find a number that "works" with every other number.

for example, say you have

2/4 and 8/12

First you need to find the common factor between 4 and 12, so list all your fours

4, 8, 12, 16, 20

Now list all your twelves

12, 24, 36, 48, 60

to find the common factor you look at both your list of numbers and find one that's the same, sometimes it takes a long list of numbers to find the common factor, but you will run into one.

So by looking at our list we see that 4 and 12 share the common factor of 12. but since 8/12 already has a denominator of 12, we are going to leave it alone.

now think about what you would multiply 4 by, to get to 12. The answer is

4 x 3 = 12

to make the numerator correct, you multiply it by the same number you did 4, so since your faction is 2/4 you should do 2 x 3 = 6

now you have your answer,

2/4 and 8/12 turns into

6/12 and 8/12

and that's how you find it, let me know if you have questions :)

Give each side and angle measure rounded to the nearest whole number.

Answers

Answer:

Step-by-step explanation:

By applying sine rule in the given triangle,

cos(25°) = [tex]\frac{\text{AC}}{AB}[/tex]

cos(25°) = [tex]\frac{b}{400}[/tex]

b = 400[cos(25°)]

b = 362.52

b = 363 ft

By applying sine rule in the given triangle,

sin(25°) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

sin(25°) = [tex]\frac{a}{400}[/tex]

a = 400[sin(25°)]

a = 169.05

a = 169 ft

m∠A + m∠B + m∠C = 180°

25° + m∠B + 90° = 180°

m∠B = 180° - 115°

m∠B = 65°

Need answer asap, will give brainliest to the correct answer.

Answers

Answer:The answer is the 2 one

Step-by-step explanation:

I need help solving this​

Answers

The answer would be 108 ft^2

What is the simplified form of the following expression? 4x2|y3z| 4x4y8

Answers

Answer:

16x⁶y⁸|y³z|.........

Answer:

B

Step-by-step explanation:

EDGE

????????????????????????

Answers

Answer:

[tex]P(Sum = 9) = \frac{1}{9}[/tex]

Step-by-step explanation:

Given

Outcomes of rolling two dice

Required

P(Sum = 9)

From the given outcomes, we have:

[tex]n(S) = 36[/tex] -- the sample size

[tex]Sum = 9:=\{(3,6),(4,5),(5,4),(6,3)\}[/tex]

So.

[tex]n(Sum = 9) = 4[/tex]

The probability is:

[tex]P(Sum = 9) = \frac{n(Sum = 9)}{n(S)}[/tex]

[tex]P(Sum = 9) = \frac{4}{36}[/tex]

Simplify

[tex]P(Sum = 9) = \frac{1}{9}[/tex]

Help plz I’ll mark brainliest

Answers

Answer: I believe the answer is B

Step-by-step explanation: Hope it helps :)

I willl mark you branlist!!

Answers

Answer:

tHIS IS EASY, JUST LOOK AT THE NUMBER OF TIMES IT HAPPENS, THAT IS UR ANSWER FOR EXPERIMENTAL PROBABILITY

Step-by-step explanation:

The Math Club makes 35 bars of soap a week and sells these at $20 each. Before the soap can be sold, 6 bars were eaten by a polar bear. If they sell the remaining bars of soap, how much will they make this week?

Answers

Answer:I don't really know

Step-by-step explanation: I kind of just come on here to stump my parents.

It's due in 30 minutes!!

Answers

1st is 40/100 = 4/10 =40%
2nd is 52/100 =26/50 = 52%
3rd is 24/100 = 6/25 = 24%
4th is 9/100 = 9/100 = 9%

Answer:

Top Left: 40/100 = 2/5 = 40%

Top Right: 52/100 = 13/25 = 52%

Bottom Left: 22/100 = 11/50 = 22%

Bottom Right: 9/100 = 9/100 = 9%

Step-by-step explanation:

How do you graph x+6y=0

Answers

Answer:

We need to put this equation into either form of a line, pererably, slope intercept form!

Step-by-step explanation:

To do this, out goal is to get y alone.

1. We subtract x on both sides.

2 We divide 6 on both sides.

3. Our answer is y= -x/6 ( negative x divided by 6)

4. The y-intecept value is when x is equal to zero, so plug in 0 for x and solve for y.

5. The y intercept is (0,0)

6. From (0,0) point, you go down -1 and move 1 to the right each time!

The graph will be a line with a slope of -1/6 that passes through the points (0,0), (6,-1), and (-6,1).

What is Graph?

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

To graph this equation, start by rearranging it to solve for y.

y = -x/6

Next, plot a few points to fill in the graph.

when x is 0,

y is 0.

When x is 6,

y is -1, and

when x is -6, y is 1.

Finally, connect the plotted points with a straight line.

The final graph will be a line with a slope of -1/6 that passes through the points (0,0), (6,-1), and (-6,1).

Hence, graph will be a line with a slope of -1/6 that passes through the points (0,0), (6,-1), and (-6,1).

To learn more on Graph click:

https://brainly.com/question/17267403

#SPJ2

what is the value of x?

Answers

Answer:

x = 111°

Step-by-step explanation:

The interior sum of a triangle is 180°

x + 37 + 32 = 180

x + 69 = 180

x = 111

good luck, i hope this helps :)

X=111 because a triangle has 180 degrees and 180-32-37=111

11. Given that the function graphed is f(x), what
is f(-5)?

Answers

Answer:

f(-5) =5

Step-by-step explanation:

We want to find the output value when x = -5

Looking at the graph when x = -5 the graph is at 5

f(-5) =5

help me do this i’m confused!! thank you!!

Answers

Volume is a 3d version of area

the faulty odemeter of a used car registers 4.6 miles for every 5 miles driven. when travelling from acton to bywater, the faulty odemeter registers 92 miles. how far apart are acton and bywater

Answers

Answer:

i have no idea how to do this but good luck on your mathematics olympics !!

Step-by-step explanation:

PLEASE HELP ITS URGENT DONT GUESS (also if you get it right ill mark you as brainliest)

Answers

Answer:

551 ft

Step-by-step explanation:

i pretty sure thats it sorry if its wrong

Express each decimal to fraction 77.0075

Answers

Answer:

77[tex]\frac{3}{400}[/tex]

Step-by-step explanation:

Answer:

30803/400

Step-by-step explanation:

77.0075 = 770075/10000

= 154015/2000

= 30803/400

If g(x) = f(4x), which statement is true?

Answers

Answer:

I believe its the last answer.

Step-by-step explanation:

²³√∛·×÷±≈≠≤≥βα∞∨∧∉∈⇔,⇒≅≡ΔπФω↑↓∵∴↔→←⇵∀⊅⊄⊇⊆⊃⊂∑∫⇆⇄⇅°∠∡⊥∪∩∅¬⊕║∦∝㏑㏒∞

What do all of these symbols stand for?

Answers

Answer:

Mathematical symbols used for different calculations?

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