Use the following to answer questions 19-21 Breast cancer is one of the leading causes of death in women prior to age 50. A study of the effectiveness of regular breast self-examination (BSE) reported in the American Journal of Public Health found that 23 of 53 women who discovered a tumor through BSE had a tumor in an early stage. Of 178 women who discovered a tumor by accident, 48 had a tumor in an early stage. Let p1 and p2 denote the proportion of women who detected early stage tumor through BSE and by accident, and let p1 and p2 denote the corresponding estimates.

The SE of p1-p2 is:________

Answers

Answer 1

Answer:

s e([tex]p^{-} _{1} - p^{-} _{2}[/tex] ) =  0.07576

Step-by-step explanation:

Step(i):-

The  proportion of the first sample

      [tex]p^{-} _{1} = \frac{x_{1} }{n_{1} } = \frac{23}{53} = 0.43396[/tex]

The proportion of the second sample

      [tex]p^{-} _{2} = \frac{x_{2} }{n_{2} } = \frac{48}{178} = 0.2696[/tex]

Step(ii):-

Standard Error of ([tex]p^{-} _{1} - p^{-} _{2}[/tex]) is determined by

[tex]se(p^{-} _{1} - p^{-} _{2}) = \sqrt{\frac{p^{-} _{1} (1-p^{-} _{1} )}{n_{1} }+\frac{p^{-} _{2}(1-p^{-} _{2} ) }{n_{2} } }[/tex]

[tex]se(p^{-} _{1} - p^{-} _{2}) = \sqrt{\frac{0.43396) (1-0.43396 )}{53 }+\frac{0.2696(1-0.2696 ) }{178} }[/tex]

on simplification, we get

s e([tex]p^{-} _{1} - p^{-} _{2}[/tex] ) =  0.07576

       


Related Questions

A company earns £3,178,784 in 2016. 4/7 of the income is spent on salaries.
How much money does the company spend on salaries in 2016?

Answers

gasta 1816448 en salarios

Step-by-step explanation:

what 2 answers are these?! x^2−5x−8=0

Answers

Answer:

sorry look question at once and comment

Will give brainliest

Which system is divided up by fractions such as ¼ and ½?

metric
or
customary

Answers

Answer:

metric

Step-by-step explanation:

The metric system is divided up by fractions such as ¼ and ½.

What is metric system?

The set of standard units used to measure length, weight, area, and capacity is known as the metric system of measurement in mathematics. As it uses numbers in powers of 10, it is based on the decimal system.

In the metric system:

Although it is not strictly forbidden, using fractions such as ¼ and ½ of a measurement is typically not necessary.

As opposed to the American Customary System.

Therefore, the metric system is divided up by fractions such as ¼ and ½.

To learn more about the metric system;

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Will mark brainliest!!
Solve for x

Answers

Answer:

The x=22

Step-by-step explanation:

For every 1000 hits a channel gets it makes £2.50 from ad revenue.
How many hits will the channel need to make £1

Answers

The channel will need 400 hits to make £1

Which of the following does NOT represent a function?

Answers

Answer:

the last one

Answer:

i think   its the first one

Step-by-step explanation:

Solve the equation 18t – 8 = 1 for t.

A. 1/6
B. 1/4
C. 1/2
D. 2

Answers

Answer:T=1/2

Step-by-step explanation: brainlyist

Write the decimal as a percent.
3.68=%

Answers

Answer:

Step-by-step explanation:3.68 = 368%

I NEED HELP ASAP
Darwin says that two expressions 3x + 4(2x + 5) and 6x + 5x + 5 are equivalent. Simplify the expressions to determine whether or not Darwin is correct.

Answers

Answer:

Darwin is not correct.

Step-by-step explanation:

3x+4(2x+5) = 6x+5x+5

3x+8x+20 = 11x + 5

11x+20 ≠ 11x+5

Hiw to simplify 5÷ 8/9

Answers

Answer:

45/8

Step-by-step explanation:

Find the surface area of the pyramid. The side lengths of the base are equal.

1: 20 sq. meters

2: 36 sq. meters

3: 20 meters

4: 36 meters ​

Answers

Answer:

God Loves you

Step-by-step explanation:

Because he died for you.    "John 3,16"

The seller of a watch marked up the price by 30%, and the new price is $468.00. What was the watch’s original price before the markup?

Answers

Answer: I THINK SO 608.4

HOPE THIS HELPS

1 and 1/2 divided by 4 and 2/8

Answers

Answer:

1.375

Step-by-step explanation:

Answer: 11/2

Step-by-step explanation:

what is the area of the square

Answers

Answer:

T

Step-by-step explanation:

(x-10)^2=(x-10)(x-10)=(x^2-10x-10x+100)=x^2-20x+100

i don’t understand this unit please answer asap

Answers

Answer:

a

Step-by-step explanation:

Nina and Annie decorate cupcakes at Solenoid Sweets bakery. On monday, they each decorated the same number of cupcakes, but nina did it in less time. On Tuesday, They each scheduled to decorate cupcakes for 4 hours. Will Nina likely decorate more or fewer cupcakes than Annie?

Answer quick please someone :)

Answers

Nina will decorate more cupcakes then annie

Answer:more

Step-by-step explanation:

Teddy makes 32 fluid ounces of hot cocoa. He pours equal amounts of cocoa into 5 cups. The amount of hot cocoa in each cup will fall between which two amounts?
A. 3 and 4 fluid ounces
B. 4 and 5 fluid ounces
C. 5 and 6 fluid ounces
D. 6 and 7 fluid ounces

Answers

D. 6 and 7 fluid ounces

32/5=6.4

Arthur has been challenged to donate $50,000. He decides to donate exactly 50% of the money every day until less than $1 remains. Write a function that would represent this situation.

Answers

Answer:(-1/2^x)(50000)

Step-by-step explanation:

Pls help I’ll brainlest for the right answer

Answers

Answer:

5.9+z=−9

Step 1: Simplify both sides of the equation.

z+5.9=−9

Step 2: Subtract 5.9 from both sides.

z+5.9−5.9=−9−5.9

z=−14.9

Answer:

z=−14.9

Step-by-step explanation:

I hope this can help!!!

why wasn't i doing this sooner :)

Answers

Step-by-step explanation:

Morning is 4 hr 15 min

afternoon is 4 hour 15 min

together is 8 hour 30 min

8.5*14 = 119 dollars

According to the unitary method, the wage of the weekly time for the employee is written as $119.00

To calculate the hours worked on Monday, we need to consider both the morning and afternoon shifts. For the morning shift, the employee clocked in at 08:00 AM and clocked out at 12:15 PM. The total time worked in the morning is 4 hours and 15 minutes (12:15 - 08:00).

Similarly, for the afternoon shift, the employee clocked in at 01:00 PM and clocked out at 05:15 PM. The total time worked in the afternoon is 4 hours and 15 minutes (05:15 - 01:00).

Adding both morning and afternoon hours, the total hours worked on Monday is

(4 hours 15 minutes + 4 hours 15 minutes) = 8 hours and 30 minutes

To perform the calculation, we need to convert the minutes to decimal hours. There are 60 minutes in an hour, so we divide the minutes by 60 to get the decimal representation. In this case, 30 minutes is equal to 0.5 hours.

Now that we have the total hours worked on Monday, we can calculate the pay. We multiply the total hours worked by the hourly wage. In this case, the hourly wage is $14/hr.

So, the pay for Monday would be:

Pay = Total hours worked x Hourly wage

Pay = 8.5 hours x $14/hr = $119.00

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PLEASE ANSWER ILL GIVE 50 POINTS AND BRAINLIEST!!!!!

Answers

the answer is 19/14x + 97/56 :)

Answer:

19/14x + 97/56

Combine like terms.
3(2-5) – (4w=11)

Answers

Answer:

-5 = w

Step-by-step explanation:

3(2-5) – (4w=11)

Distributive property

6 - 15 - 4w = 11

Combine like terms

-9 - 4w = 11

Add 9 on both sides

-9 + 9 - 4w = 11 + 9

-4w = 20

Divide by -4 on both sides to isolate the variable

-4w/-4 = 20/-4

w = -5

Hope this helped!

Have a supercalifragilisticexpialidocious day!

Answer:

i can solve this put first why is there an equal sign in between the parantasis

if you want to keep the equal sign delet the ()

Step-by-step explanation:

3(2-5) – 4w=11

-9-4w=11

-4w=20

w=-5

you have to do parantasis first

p--parantasis

e--exponents

m--multiplication

d--division

a--adition

s--subtraction

Does anyone know how to solve 2x + 4

Answers

Answer:well if your trying to find the x and y intercept then it would be x=(-2,0) and y (0,4) but im not sure  if thats what your trying to find

Factorise x 2 + 20 x + 100

Answers

Answer:

(x+10)(x+10)

or (x+10)²

Step-by-step explanation:

this factories can use this

a² + 2ab + b²

; (a)² + 2(a)(10) + (b)²

= (a+b)²

hope it helps you ☺️

Any questions (ask me in comments)

Need help asap
Will mark you brainlist

Answers

Answer:

y= -1/2 x -1

Step-by-step explanation:

177 is what percent of 300? Round your answer to the nearest tenths.

Answers

Answer: 59%

Step-by-step explanation:

Hope this helps have a great day. :)

Answer:

59%

Step-by-step explanation:

I would solve this through proportions

177                x

300            100

Cross multiply

177 x 100 = 17700

And then divide

17700/300 = 59

The answer is 59%

if you can help it would be much appreciated​

Answers

Answer:

V≈5321.86

Step-by-step explanation:

A light bulb manufacturing process results in 6% of the light
bulbs being defective. If 5 light bulbs are randomly
selected, find the probability that all of the light bulbs are
fully functioning.

Answers

Answer:

[tex]Probability = 0.734[/tex]

Step-by-step explanation:

Given

Represent the event that a bulb is defective with p.

So:

[tex]p =6\%[/tex]

Required

Determine the probability that all 5 are fully functioning

Represent the event that a bulb is defective with q.

So:

[tex]p + q = 1[/tex]

Make q the subject

[tex]q = 1 - p[/tex]

Substitute 6% for p

[tex]q = 1 - 6\%[/tex]

Convert % to decimal

[tex]q = 1 - 0.06[/tex]

[tex]q = 0.94[/tex]

If 5 were selected and all are functioning, the event is represented as: q q q q q

And the probability is:

[tex]Probability = q * q * q * q *q[/tex]

[tex]Probability = q^5[/tex]

Substitute 0.94 for q

[tex]Probability = 0.94^5[/tex]

[tex]Probability = 0.7339040224[/tex]

[tex]Probability = 0.734[/tex] --- approximated

Help on No. 5 plz.........

Answers

X ~ 17.5 y ~ 19.2 because it is and they’re congruent so just find the multiplier

What’s the function and domain and range. (1, -2) (-2, 0) (-1, 2) (1, 3)

Answers

Answer: Domain:

{

1

,

2

,

1

}

{

1

,

-

2

,

-

1

}

Range:

{

2

,

0

,

2

,

3

}

Step-by-step explanation: The domain is the set of all the values of

x

x

. The range is the set of all the values of

y

y

.

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