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
lawyer [7]
2 years ago
9

50 POINTS

Mathematics
1 answer:
Anon25 [30]2 years ago
8 0

Answer:

95% confidence interval for the true average triglyceride level of people in West Palm Beach

(215.519 , 224.480)

Step-by-step explanation:

<u>Step(l) :-</u>

Given a blood test on 30 randomly selected people was conducted and yielded a mean triglyceride level of 220, with a standard deviation of 12.

Given sample size n = 30

mean of the sample x⁻ = 220

standard deviation of the sample  = 12

<u>Step(ll)</u>:-

<u>95% of confidence intervals</u>:-

95% confidence interval for the true average triglyceride level of people in West Palm Beach

(x^{-} - t_{0.95} \frac{S}{\sqrt{n} } , x^{-} + t_{0.95} \frac{S}{\sqrt{n} } )

(220 - t_{0.95} \frac{12}{\sqrt{30} } , 220+ t_{0.95} \frac{12}{\sqrt{30} } )

The degrees of freedom ν = n-1 = 30-1 =29

t₀.₉₅ = 2.0452

(220 - 2.0452 \frac{12}{\sqrt{30} } , 220+ 2.0452 \frac{12}{\sqrt{30} } )

(220 - 4.4808 , 220 + 4.4808)

(215.519 , 224.480)

<u>Conclusion:-</u>

95% confidence interval for the true average triglyceride level of people in West Palm Beach

(215.519 , 224.480)

You might be interested in
Two marathon runners run the full distance of the marathon, approximately 26 miles, in 4 hours.
xxTIMURxx [149]

Answer:

6.5 miles in 1 hour and they will run 75% of the full distance in 1 hour.

Step-by-step explanation:

The distance covered by two marathon runners = 26 miles

They takes 4 hours

We need to find how many miles did they run in 1 hour

In 4 hour, the distance covered is 26 miles

To find distance covered in 1 hour, divide 26 by 4 such that.

d=\dfrac{26}{4}\\\\d=6.5\ \text{miles/hour}

So, they will cover 6.5 miles in 1 hour.

For percentage,

\%=\dfrac{26-6.5}{26}\times 100\\\\=75\%

So, they will run 75% of the full distance in 1 hour.

8 0
3 years ago
The original retail of a leather chair is listed at $121.40 and is discounted by 60% in a summer sale. What is the discount and
olga2289 [7]

Answer:48.56

Step-by-step explanation: 121.40-60%=

5 0
3 years ago
Helpp pleaseee will give brainilisist
LenKa [72]

Answer:

I disagree with both Andre thinks exponents

are just a different way of writing

multiplication of two numbers. Elena

calculates 28 to the power of two rather than 2 to the power of 28.

Step-by-step explanation:

Correct because I have on answer key.

3 0
2 years ago
Read 2 more answers
What number should be added on both sides of the equation to complete the square x2 -6x =5
m_a_m_a [10]
The Answer wouldn't be any other number but 9. I took this test and got it right.
6 0
3 years ago
Read 2 more answers
WHAT IS THE PERIMITER? PLS HELP ME OUT. IT WOULD BE REALLY APPRECIATED IF YOU HELPED. IF NOT, ITS ALRIGHT. HAVE A GOOD DAY. IM R
anzhelika [568]
D
you have to use pythagorean theorem to find the missing side then since it’s a rectangle multiply 30 by 2 and 16 by 2 then add those for the perimeter, giving you 92

5 0
3 years ago
Other questions:
  • Find the area of the irregular shape
    9·2 answers
  • Which of the following scales of measurement lacks numeric properties?
    11·1 answer
  • For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =
    13·2 answers
  • For a haircut ang style Karl was charged $25.She wanted to give the stylist a 15% tip
    12·1 answer
  • R+2r=105 what is answer
    7·1 answer
  • UURGENTTT PLLZ HELP WILL MARK AS BRANLIEST!!!
    10·1 answer
  • Draw blocks and make a 10 to add
    15·1 answer
  • Write the equation of the line that passes through the points (0,–2) and (4,5). Put
    14·1 answer
  • If n = 8 and 16 • 2m = 4n – 8, then m = ?
    12·1 answer
  • The table shows values for functions f(x) and g(x). Just answer this simple simple question for a brain list and extra points.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!